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PHYSICS.pptx

This document contains a summary of key physics concepts in multiple choice question format. Some of the concepts covered include: - Latent heat of fusion and how it relates to the energy needed to freeze a liquid. - Elastic potential energy stored in stretched elastic materials like springs. - Centrifugal force and how it relates to radius of curvature and tangential velocity. - Fluid pressure and principles like Pascal's principle, Bernoulli's theorem, and Archimedes' principle. - Density, specific gravity, the density and specific gravity of water and mercury. - Temperature scales, boiling points, absolute zero. - Atmospheric pressure, gauge pressure, and instruments to measure

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PHYSICS
1. In Physics, if Lf and Lv are latent heat of fusion and vaporization respectively, which of the following equations apply in determining the amount of energy needed to freeze a liquid? A. Q= -mLf B. Q= -mLv C. Q= mLv D. Q= mLf
2. _____ is the quality of being physically elongated. A. Flexibility B. Ductility C. Malleability D. plasticity
3. When the total kenitic energy of system is the same as before and after collision of two bodies, it is called A. Plastic collision B. Inelastic collision C. Elastic collision D. Static collision
3. Momentum is a property related to the object`s ____ A. Motion and mass B. Mass and acceleration C. Motion and weight D. Weight and velocity
5. The amount of heat needed to change solid to liquid is A. Condensation B. Cold fusion C. Latent heat of fusion D. Solid fusion
6. The energy stored in a stretched elastic material such as a spring is A. Mechanical energy B. Elastic potential energy C. Internal energy D. Kinetic energy
7. According to this law, “the force between two charge varies directly as the magnitude of each charge and inversely as the square of the distance between them” A. Law of universal gravitation B. Coulomb`s law C. Newton`s law D. Inverse square law
8. A free falling body is a body in rectilinear motion and with constant _____. A. Acceleration B. Speed C. Deceleration D. Velocity
9. Centrifugal force _______. A. Directly proportional to the radius of the curvature B. Directly proportional to the square of the tangential velocity C. Inversely proportional to the square of the tangential velocity D. Directly proportional to the square of the weight of the object
10. The fluid pressure is the same in all directions. This is known as A. Pascal`s principle B. Bernoulli`s theorem C. Ideal fluid principle D. Archimedes principle
11. The reciprocal of bulk modulus of any fluid is called A. Volume stress B. Compressibility C. Shape elasticity D. Volume strain
12. Momentum is the product of mass and A. Acceleration B. Velocity C. Force D. Time
13. One horsepower is equivalent to A. 746 watts B. 7460 watts C. 74.6 watts D. 7.46 watts
14. What is the latent heat fusion required to turn ice to liquid A. 2,256kJ/kg B. 970 BTU/lbm C. 334kJkg D. 168 BTU/lbm
15. What is the value of the work done for a closed reversible, isometric system? A. Positive or negative B. Negative C. Positive D. Zero
16. The sum of the pressure head, elevation head and the velocity head remains constant. This is known as A. Boyle`s law B. Torrecellos`s theorem C. Archimedes principle D. Bernoulli`s theorem
17. A leak from a faucet comes out in separate drops. Which of the following is the main cause of this phenomenon? A. Surface tension B. Air resistance C. Gravity D. Viscosity of the fluid
18. Absolute viscosity is essentially independent of pressure and is primarily dependent on A. Temperature B. Density C. Specific gravity D. velocity
19. In describes the luminous flux incidence per unit area and is expressed in lumens per square meter A. Illuminance B. Luminance C. Luminous intensity D. radiance
20. When two waves of the same frequency, speed and amplitude travelling gin opposite directions are superimposed, A. Standing waves are produces B. Constructive interference always results C. The phrase difference is always zero D. Destructive interference always results
21. Linear momentum is the product of mass and velocity and this can be expressed also as a function of A. Force, acceleration, time B. Force, velocity, time C. Force, time D. Force, displacement
22. The transmission of heat from one place to another by fluid circulation between the spots of different temperature is called A. Convection B. Radiation C. Conduction D. conservation
23. It is measure of randomness of the molecules of a substance. A. Entropy B. Enthalpy C. Internal energy D. Kinetic energy
24. The amount of heat needed to raise the temperature of one pound of that substance one degree Fahrenheit is A. Specific heat B. BTU C. Latent heat D. Calorie
25. What is gage used to measured 0.001 to 1 atm pressure? A. Bourdon B. Water manometer C. Mercury manometer D. Metallic manometer
26. One of the types of non–material nuclear radiation is A. Transmission radiation B. Walton radiation C. Gamma radiation D. Betatron radiaton
27. A flower pot of a ledge of a 5th floor window, just as it passes the third floor window, someone accidentally drop a glass of water from the window. Which of the following is true? A. The flower pot hits the ground at the same time as the glass. B. The glass hits the ground before the pot. C. The flower pot hits the ground first and with higher speed that the glass. D. The flower pot and the glass hits the ground at the same time.
28. Whenever a net force acts on a body, it produces an acceleration in the direction of the resultant force, an acceleration which is directly proportional to the resultant force and inversely proportional to the mass of the body. This theory is popular known as A. Newton`s first law of motion B. Faraday`s law of force C. Newton`s second law of motion D. Hooke`s law
29. Any two points along a streamline in an ideal fluid in steady state flow, the sum of pressure, the potential energy per unit volume and the kinetic energy per unit volume has the same value. This concept is known as the: A. Pascal`s theorem B. Bernoulli`s energy theorem C. Fluid theorem D. Hydraulic theorem
30. Inelastic collision is a collision in which the total kinetic energy after the collision is _____ before collision. A. Equal to zero B. Equal C. Less than D. Greater than
31. The property by virtue of which a body tends to return to its original size of shape after a deformation and when the deformation forces have been removed. A. Elasticity B. Malleability C. Ductility D. Plasticity
32. When two waves of the same frequency, speed and the amplitude traveling in opposite directions superimposed, A. Destructive interference always results B. Standing waves are produced C. Constructive interference always results D. The phase difference is always zero
33. What is the name of a vector that represents the sum of two vectors? A. Scalar B. Tensor C. Resultant D. reaction
34.The standard acceleration due to gravity is A. 32.2 ft/s² B. 980 ft/s² C. 9.81 ft/s² D. 23.3 ft/s²
35. Ivory soap floats in water because A. All matter has mass B. The specific gravity of ivory soap is less than of water C. The density if ivory soap is unity D. The specific gravity of ivory soap is less than that of water
36. One gram of ice at 0°C. Assuming no heat loss, what will happen? A. Ice will become water B. Some parts of ice will not change C. The volume of ice will not change D. All of the above
37. Melting of ice is A. 373K B. 273K C. 100°C D. 4°C
38. The standard meter is defined as ____ wavelengths in vacuum of the orange-red line of the spectrum of krypton 86. A. 1,560,763.73 B. 1,650,763.73 C. 1,750,763.73 D. 1,850,763.73
39. Originally defined as the fraction 1/86400 the mean solar day and now defined as the duration of 9,192,631,770 periods of the radiation of a certain state of the cesium-133 atom A. Second B. Minute C. Hour D. Day
40. The ratio of the density of the substance to the density of water. A. Specific weight B. Relative weight C. Specific gravity D. Mass
41. The_____of a substance is its density relative to that of pure water A. Density B. Specific weight C. Specific gravity D. Pressure
42. What is another name for specific gravity? A. Density B. Relative density C. Specific weight D. Mass
43. What is the specific gravity of water? A.1.0 B.1000 C.62.4 D.O.8
44. Which is another term for density? A.Specific gravity B.Specific weight C.Interia D.Malleability
45. Which of the following is NOT a density of water? A.1000 kg/m3 B.9.81 kN/m3 C.1 gram / cc D.64.2 lb/ft3
46. What is the specific gravity of mercury? A.1.0 B.0.8 C.7.5 D.13.6
47.Absolute zero temperature? A. 32 ° F B. 0 ° C C. 4 ° K D. 0 ° K
48. At what temperature readings do the Fahrenheit and Celsius have the same value? A. -30 ° B. -35 ° C. -40 ° D. -45 °
49. Dense condition of water is at what temperature ? A. 0 ° C B. 2 ° C C. 4 °C D. 100 ° C
50. Indicate the FALSE statement about temperature. A. Boiling point of centigrade scale 100 ° B. Fahrenheit scale was invented by a german. C. Absolute temperature scale is expressed in ° k D. Absolute zero in Fahrenheit scale is - 273 °
51. Standard atmospheric pressure. A. 9810 N/m2 B . 13.7 psi C. 0.5 Bar D. 760 mm of Hg
52. Absolute pressure equals A. Gauge pressure B. Atmospheric pressure C. Gauge pressure + atmospheric pressure D. Barometric pressure
53. The difference between the absolute pressure and the atmospheric pressure is called A. Gauge pressure B. Barometric pressure C. 1 torr D. All of the above
54. Under normal condition, the gauge pressure at water surface is A. Less than zero B. Equal to zero C. Greater than zero D. Half the atmospheric pressure
55. An instrument to measure air pressure is the A. Thermometer B. Barometer C. Wind vane D. Pitot tube
56. The atmospheric pressure at mean sea level is known as the standard atmospheric pressure and is equal to how many psi? A. 13.7 B. 14.7 C. 15.7 D. 16.7
57. At constant pressure, the volume is directly proportional to temperature. This is known as A. Boyle`s law B. Charles` law C. Gay-lussac law D. Ideal gas law
58. “At constant temperature, the volume is inversely proportional to the pressure.” this is known as A. Boyle`s law B. Charles law C. Gay-lussac law D. Ideal gas law
59. All are scalar quantities except A. Acceleration B. Speed C. Energy D. Temperature
60. All are vector quantities except A. Displacement B. Electric field intensity C. Torque D. mass
61. A vector is a straight segment that has a definite A. Length and direction B. Direction and sense C. Length and sense D. Length , direction and sense
62. The scalar product of two vectors are sometimes known as A. Dot product B. Resultant C. Cross product D. magnitude
63. Which of the following is incorrect? A. All vector quantities have magnitudes B. All scalar quantities have directions C. All scalar quantities have magnitudes D. All vector quantities have directions
64. The _____ of two vector is obtained by adding one vector to the negative of the other. A. magnitude B. sum C. product D. difference
65. The distance per unit time. A. Speed B. Velocity C. Acceleration D. motion
66. The displacement per unit time. A. speed B. Velocity C. Acceleration D. motion
67. Define as the gravitational force exerted on an object because of its attraction to some other masses such as the earth. A. Weight B. Velocity C. Acceleration D. motion
68. Defined quantitatively as the amount of the matter of which the object is made. It also refer to the measure of the objects inertia. A. Weight B. Mass C. Inertia D. Either mass or weight
69. Which of the following statement is true? A. The weight and the mass of a body depends on its location. B. The mass of the body is independence on its location. C. The weight of the body is independence on its location. D. The weight of the body is depends on its location while the mass is independence of its location.
70. Which of the following is true about the weight of an object? A. It is the force with which it is attracted t the earth. B. It is the same as the mass of an object. C. It is equivalent to the mass of the object divided by the gravitational acceleration. D. It is constants any where in the universe.
71. A measure of inertia of a body, which is its resistance to a change in velocity. A. Force B. Mass C. Acceleration D. Moment of inertia
72. A quantitative measure of inertia. A. Weight B. Mass C. Force D. acceleration
73. Indicate the false statement. A. Weight of the body is gravitational force. B. Mass is the measure of the response of the body to an applied force. C. Weight of the body varies with is location. D. Weight of the body is always equal to its mass.
74.A cart loaded with gravel is hard to get started rolling because of its large. A. Mass B. Weight C. Density D. volume
75. The mass to which the force of one found will give an acceleration of one foot per second per second. A. Slug B. Dyne C. Erg D. Joule
76. The tendency of any object to remain at rest or to continue in motion is called A. Equilibrium B. Mass C. inertia D. static
77. Any influence capable of producing change in the motion of an object is called A. Force B. Velocity C. Acceleration D. vector
78.. Which of the following is not unit of force? A. Pound B. Erg C. Dyne D. newton
79. The unit of force which is equivalent to 1 gram-cm/sec square. A. Joule B. Slug C. Dyne D. Newton
80. The product of force and displacement is called A. Energy B. Power C. Work D. momentum
81. Which of the following is not unit of work? A. Joules B. Kilowatt-hour C. Erg D. slug
82. What is the SI unit of work? A. Joule B. Kg-m C. N-cm D. Foot-pound
83. The work done by external force ob particles is equal to the ______ of the particle. A. Change in momentum B. Impulse C. Change in kinetic energy D. Change in potential energy
84. The work done by all forces except the gravitational force is always equal to the _____ of the system. A. total potential energy B. Total impulse C. Total mechanical energy D. Total momentum
85. There is no work done when A. The force is parallel to the displacement B. The force is perpendicular to the displacement. C. There is a angle between the force and the displacement. D. All of the above
86. The work done by a force of 1 newton acting through a distance of 1 m is known as A. Watt B. Erg C. Joule D. Btu
87. The work done in lifting an object of mass ‘’m’’ to a height ‘’h’’ is A. Mh B. Mgh C. Mh/g D. Mgh/2
88. Indicate the false statement about work. A. Work = force x distance B. Work is a scallar quantity C. The unit of the work is the SI is joules and erg in the English System D. Work = power x time
89. The force due to gravity does not work on object that A. Fall to the ground B. Is move vertically upward C. Is move parallel to the surface of the earth D. All of the above
90. The rate of doing work. A. Force B. Energy C. Power D. momentum
91. What is the SI unit of power? A. Joule B. Kilowatt-hour C. Horsepower D. watt
92. All are units of power except A. Watt B. Horsepower C. Newton-meter/second D. joules
93. Joule is an SI unit of A. Work B. Inertia C. Power D. momentum
94. Why it is that power delivered by any machine is always less than the power supplies to it? A. Due to efficiency B. due to presence of the potential energy C. Due to its speed D. Due to the presence of friction
95. The capacity to do work is called A. Power B. Energy C. Momentum D. impulse
96. Kinetic energy equals A. ½ mass x velocity B. Mass x velocity C. Mass x acceleration D. ½ mass x velocity squared
97. An energy of the objects motion is called A. Rest energy B. Potential energy C. Thermal energy D. Kinetic energy
98. An energy by the virtue of the objects position of elevation is called A. Rest energy B. Potential energy C. Thermal energy D. Kinetic energy
99. An energy by the virtue of the object mass is called A. Rest energy B. Potential energy C. Thermal energy D. Kinetic energy
100. The energy of an object due to its vertical separation from the earths surface.. A. Thermal energy B. Rest energy C. Gravitational potential energy D. Elastic potential energy
101. The energy stored in a stretched or compressed elastic material such as a spring is called A. Thermal energy B. Elastic potential energy C. Kinetic energy D. Elastic Kinetic energy
102. The kinetic energy of the atoms and the molecules due to their random motion is called A. Thermal energy B. Elastic potential energy C. Rest energy D. Heat energy
103. The change in gravitational potential energy depends on the _____ of the object. A. Initial and final vertical position B. Path followed in moving between two position C. Initial and final velocity D. All of the abbove
104. Kinetic means that it is A. In motion B. Subjected to a force C. Is in equilibrium D. Is subjected to friction
105. What will happen to the kinetic energy of the body it its velocity doubled? A. Doubled B. Quadrupled C. Tripled D. Remain the same
106. Thermal energy refers to the random kinetic energy of all _____ in a substance. A. Atoms B. Molecules C. Masses D. Atoms and molecules
107. A vector which is a product of mass and velocity of the body. A. Momentum B. Impulse C. Energy D. displacement
108. The product of a force and the time during which it acts is known as A. Momentum B. Velocity C. Coefficient of restitution D. impact
109. Momentum is the product of mass and A. acceleration B. Velocity C. Force D. Time
110. Change of momentum is equal to A. acceleration B. impulse C. power D. Kinetic energy
111. What is the SI of impulse A. n-s B. Kg-m/s C. Slugs/s D. N-m/s
112. What is the SI unit of momentum? A. n-s B. Kg-m/s C. Slugs/s D. N-m/s
113. If the velocity of the body is doubled in value, its _____ will also doubled. A. Acceleration B. Impulse C. Momentum D. Kinetic energy
114. The negative reaction of the relative velocity after a collision to a relative velocity before a collision A. Coefficient of friction B. Coefficient of sliding C. Coefficient of kinetic friction D. Coefficient of restitution
115. A collision in which the total kinetic energy after collision is less than that before collision. A. elastic collision B. Inelastic collision C. Straight line collision D. Off center collision
116. When the colliding bodies stick together on impact which results in the maximum possible loss in kinetic energy, it is said to be ______ collision A. Elastic B. Inelastic C. Completely inelastic D. None of the above
117. Which of the following is true about collision? A. In elastic collision, no kinetic energy is lost. B. In elastic collision, the two colliding bodies stick together after impact. C. In completely inelastic collision, no kinetic energy lost. D. Kinetic energy is not conserved in an elastic collision.
118. At what situation when the colliding objects stops and the target moves off with the same speed after collision? A. When their masses are equal to the target is stationary. B. When the target is stationary even if their masses are not equal. C. When their masses are equal and the target is moving with a speed less than that of the colliding body. D. When their masses are equal and the target is moving with a speed greater than that of the colliding body.
119. If the colliding object has a mass greater than that of the stationary target, after the impact, the; A. Colliding object stops. B. The colliding object continues its motion in the same direction with reduced speed. C. The colliding objects continues its motion in the same direction the same speed. D. The lighter the object bounces off the heavier one.
120. If the colliding object has a mass greater than that of the stationary target, after impact, the; A. Colliding object stop. B. Colliding objects continue its motion in the same direction with reduced speed. C. The colliding objects continues its motion in the same direction the same speed. D. The lighter the object bounces off the heavier one.
121. For perfect elastic collision, the coefficient of restitution, e is equal to A. 0 B. 1 C. Negative value D. Infinity
122. For perfect inelastic collision, the coefficient of restitution, e is equal to A. 0 B. 1 C. Negative value D. Infinity
123. In elastic collision, A. The kinetic energy is conserved B. The kinetic energy is not conserved C. The objects sticks together after impact D. The loss of kinetic energy is maximum
124. “ For every action, there is always an equal and opposite reaction”. This is known as A. Newton’s first law B. Newton’s second law C. Newton’s third law D. Law of inertia
125. “Every body continues in its state of rest or at constant speed in a straight line motion, it is compelled to change that state because of forces acting on it”. This is known as A. Newton’s first law B. Newton’s second law C. Newton’s third law D. Kepler’s law
126. “An unbalanced force acting on an object will cause the object to accelerate in the direction of the force”. This is known as A. Newton’s first law B. Newton’s second law C. Newton’s third law D. Kepler’s law
127. Newton’s second law of motion states that the rate of change of momentum with respect to time is A. Force B. Energy C. Power D. Work
128. The accurate formulation of the laws of motions, as well as of gravitational was made by A. Galelio B. Kepler C. Varignon D. Newton
129. The law which describes the motion of stars, planets and comets. A. Law of universal gravitation B. Newton’s law of motions C. Kepler’s law D. Big bang and black hole
130. Which of the following does not describe the object as observed from earth? A. Apogee B. Perigee C. Eccentricity D. Focus
131. If an external pressure is applied in a confined fluid, the pressure will be increased at every point in the fluid by the amount of external pressure. This is known as A. Archimedes principle B. Pascal’s law C. Boyle’s law D. Bernoulli’s theorem
132. According to this law: “The force between two charges varies directly as the magnitude of each charge and inversely as the square of the distance between them”. A. Law of universal gravitation B. Coulomb’s law C. Newton’s law D. Inverse-square law
133. “At any two points along a streamline in an ideal fluid in a steady flow, the sum of the pressure, the potential energy per unit volume and the kinetic energy per unit volume has the same value”. This concept is known as A. Pascal’s theorem B. Bernoulli’s theorem C. Hydraulic theorem D. Ideal fluid theorem
134. “Whatever a net force acts on a body’ it produces an acceleration that is directly proportional to the mass of the body. This theory is popularly known as A. Faraday’s law of forces B. Newton’s second law of motion C. Newton’s first law of motion D. Hooke’s law of equilibrium
135. A measure of the resistance of a body it offers to any changes in its angular velocity, determined by it mass and distribution of its mass about the axis of rotation is known as A. Moment of inertia B. Friction C. Torsion D. Angular acceleration
136. In the equation E = mc², c is A. The distance between the neutral axis to the outermost fiber B. Einstein constant C. Speed of light D. Speed of sound
137. The range of a projectile depends on A. Initial velocity only B. Initial velocity and weight of the body C. Initial velocity and angle of projection D. Initial velocity, weight of the body and angle of projection
138. In a trajectory, air resistance decreases A. The speed B. The maximum height C. The range of projectile D. All of the above
139. In the absence of air resistance, a projectile sent off at an angle of Θ above the horizontal with an initial velocity of V has a horizontal range of A. R=(V²/g)sin2Θ B. R=(2VsinΘ)/g C. R=(V/g)sin2Θ D. R=(2VsinΘ)/g
140. In the preceding question, the time of flight is A. t = (2Vsin²Θ)/g B. t = (V²sin²Θ)/g C. t = (V²/g)sin2Θ D. t = (2VsinΘ)/g
141. The trajectory of a projectile is a graph of A. Circle B. Parabola C. Ellipse D. Hyperbola
142. If an object is thrown vertically upward, its acceleration A. Is smaller than that of the object thrown vertically downward B. Is equal to that of an object thrown vertically downward C. Greater than that of the object thrown vertically downward D. Zero until the object reaches maximum point
143. The acceleration is _____ the resultant force on the object. A. Directly proportional to B. Inversely proportional to C. Directly proportional to the square of D. Inversely proportional to the square of
144. The acceleration is ____ the mass of the object. A. Directly proportional to B. Inversely proportional to C. Directly proportional to the square of D. Inversely proportional to the square of
145. Refers to the vertical speed at which the force of air resistance is just sufficient to balance the body’s weight. A. Gravitational acceleration B. Terminal speed C. Drag D. Lift
146. Objects falling in air from the same height will not reach the ground at the same time because: A. Air resistance increases with velocity B. Falling body will eventually reaches terminal velocity C. If it reaches terminal velocity, it cannot fall any faster than that D. All of the above
147. A point on the object from which it can be suspended in any orientation without tending to rotate. A. Center of gravity B. Center of mass C. Barycenter D. All of the above
148. What is another term for centroid? A. Center of gravity B. Center of mass C. Barycenter D. All of the above
149. Centrifugal force is directly proportional to A. The square of the tangential velocity B. The tangential velocity C. Radius of curvature D. The weight of object
150. The amount of heat required to change the temperature of 1pound of water 1°F. A. Calorie B. Thermal energy C. Specific heat D. British Thermal Unit (BTU)
151. Calorie is defined as the amount of heat required to raise a temperature of ____ of water 1°C. A. 1 gram B. 1 kilogram C. 1 pound D. 1 ton
152. The amount of heat needed to change the temperature of a unit quantity of it by 1° A. BTU B. Heat transfer C. Temperature D. Specific heat capacity
153. What is specific heat? A. A temperature of 1 kg sample reported in °C. B. The heat needed to raise the temperature of 1 pound of water 1°F C. The energy needed to raise the temperature of 1 gram of a substance 1°C D. Any of the above
154. What is the specific heat capacity of water in kJ/kg °C? A. 4.19 B. 3.89 C. 2.19 D. 1.49
155. The amount of heat must be supplied to change 1 kg of the substance at its boiling point from the liquid state to the gaseous state. A. Heat of fusion B. Heat of evaporation C. Specific heat D. BTU
156. The amount of heat that must be supplied to change 1 kg of the substance and its boiling point from the liquid state to the gaseous state. A. Heat of fusion B. Heat of evaporation C. Specific heat D. BTU
157. “Any body immersed in a fluid is subjected to a buoyant force which is equal to the weight of the fluid displaced”. This is known as: A. Pascal’s law B. Bernoulli’s theorem C. Archimedes principle D. Venturi’s principle
158. The total hydrostatic force on plane area is directly proportional to A. Density of fluid B. Square of the pressure head C. Square of the area D. Cube of the area
159. Buoyant force is equal to A. Density of fluid x total volume B. Density of fluid x volume above the surface C. Density of fluid x volume submerged D. Specific gravity of fluid x volume submerged
160. Refers to the tendency of the liquid surface to contact to the minimum possible area in any situation. A. Ductility B. Viscosity C. Surface tension D. Capiliarity
161. Refers to the measure of the fluid’s internal friction. A. Capiliarity B. Viscosity C. Surface tension D. Laminar flow
162. The _____ of a machine equals to the ratio between its actual and its theoretical mechanical advantage. A. Output B. Input C. Efficiency D. Power
163. Actual mechanical advantage is the ratio between: A. Output force to input force B. Input distance to output distance C. Output work to input work D. Power output to power input

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PHYSICS.pptx

  • 1.
  • 2.
    1. In Physics,if Lf and Lv are latent heat of fusion and vaporization respectively, which of the following equations apply in determining the amount of energy needed to freeze a liquid? A. Q= -mLf B. Q= -mLv C. Q= mLv D. Q= mLf
  • 3.
    2. _____ isthe quality of being physically elongated. A. Flexibility B. Ductility C. Malleability D. plasticity
  • 4.
    3. When thetotal kenitic energy of system is the same as before and after collision of two bodies, it is called A. Plastic collision B. Inelastic collision C. Elastic collision D. Static collision
  • 5.
    3. Momentum isa property related to the object`s ____ A. Motion and mass B. Mass and acceleration C. Motion and weight D. Weight and velocity
  • 6.
    5. The amountof heat needed to change solid to liquid is A. Condensation B. Cold fusion C. Latent heat of fusion D. Solid fusion
  • 7.
    6. The energystored in a stretched elastic material such as a spring is A. Mechanical energy B. Elastic potential energy C. Internal energy D. Kinetic energy
  • 8.
    7. According tothis law, “the force between two charge varies directly as the magnitude of each charge and inversely as the square of the distance between them” A. Law of universal gravitation B. Coulomb`s law C. Newton`s law D. Inverse square law
  • 9.
    8. A freefalling body is a body in rectilinear motion and with constant _____. A. Acceleration B. Speed C. Deceleration D. Velocity
  • 10.
    9. Centrifugal force_______. A. Directly proportional to the radius of the curvature B. Directly proportional to the square of the tangential velocity C. Inversely proportional to the square of the tangential velocity D. Directly proportional to the square of the weight of the object
  • 11.
    10. The fluidpressure is the same in all directions. This is known as A. Pascal`s principle B. Bernoulli`s theorem C. Ideal fluid principle D. Archimedes principle
  • 12.
    11. The reciprocalof bulk modulus of any fluid is called A. Volume stress B. Compressibility C. Shape elasticity D. Volume strain
  • 13.
    12. Momentum isthe product of mass and A. Acceleration B. Velocity C. Force D. Time
  • 14.
    13. One horsepoweris equivalent to A. 746 watts B. 7460 watts C. 74.6 watts D. 7.46 watts
  • 15.
    14. What isthe latent heat fusion required to turn ice to liquid A. 2,256kJ/kg B. 970 BTU/lbm C. 334kJkg D. 168 BTU/lbm
  • 16.
    15. What isthe value of the work done for a closed reversible, isometric system? A. Positive or negative B. Negative C. Positive D. Zero
  • 17.
    16. The sumof the pressure head, elevation head and the velocity head remains constant. This is known as A. Boyle`s law B. Torrecellos`s theorem C. Archimedes principle D. Bernoulli`s theorem
  • 18.
    17. A leakfrom a faucet comes out in separate drops. Which of the following is the main cause of this phenomenon? A. Surface tension B. Air resistance C. Gravity D. Viscosity of the fluid
  • 19.
    18. Absolute viscosityis essentially independent of pressure and is primarily dependent on A. Temperature B. Density C. Specific gravity D. velocity
  • 20.
    19. In describesthe luminous flux incidence per unit area and is expressed in lumens per square meter A. Illuminance B. Luminance C. Luminous intensity D. radiance
  • 21.
    20. When twowaves of the same frequency, speed and amplitude travelling gin opposite directions are superimposed, A. Standing waves are produces B. Constructive interference always results C. The phrase difference is always zero D. Destructive interference always results
  • 22.
    21. Linear momentumis the product of mass and velocity and this can be expressed also as a function of A. Force, acceleration, time B. Force, velocity, time C. Force, time D. Force, displacement
  • 23.
    22. The transmissionof heat from one place to another by fluid circulation between the spots of different temperature is called A. Convection B. Radiation C. Conduction D. conservation
  • 24.
    23. It ismeasure of randomness of the molecules of a substance. A. Entropy B. Enthalpy C. Internal energy D. Kinetic energy
  • 25.
    24. The amountof heat needed to raise the temperature of one pound of that substance one degree Fahrenheit is A. Specific heat B. BTU C. Latent heat D. Calorie
  • 26.
    25. What isgage used to measured 0.001 to 1 atm pressure? A. Bourdon B. Water manometer C. Mercury manometer D. Metallic manometer
  • 27.
    26. One ofthe types of non–material nuclear radiation is A. Transmission radiation B. Walton radiation C. Gamma radiation D. Betatron radiaton
  • 28.
    27. A flowerpot of a ledge of a 5th floor window, just as it passes the third floor window, someone accidentally drop a glass of water from the window. Which of the following is true? A. The flower pot hits the ground at the same time as the glass. B. The glass hits the ground before the pot. C. The flower pot hits the ground first and with higher speed that the glass. D. The flower pot and the glass hits the ground at the same time.
  • 29.
    28. Whenever anet force acts on a body, it produces an acceleration in the direction of the resultant force, an acceleration which is directly proportional to the resultant force and inversely proportional to the mass of the body. This theory is popular known as A. Newton`s first law of motion B. Faraday`s law of force C. Newton`s second law of motion D. Hooke`s law
  • 30.
    29. Any twopoints along a streamline in an ideal fluid in steady state flow, the sum of pressure, the potential energy per unit volume and the kinetic energy per unit volume has the same value. This concept is known as the: A. Pascal`s theorem B. Bernoulli`s energy theorem C. Fluid theorem D. Hydraulic theorem
  • 31.
    30. Inelastic collisionis a collision in which the total kinetic energy after the collision is _____ before collision. A. Equal to zero B. Equal C. Less than D. Greater than
  • 32.
    31. The propertyby virtue of which a body tends to return to its original size of shape after a deformation and when the deformation forces have been removed. A. Elasticity B. Malleability C. Ductility D. Plasticity
  • 33.
    32. When twowaves of the same frequency, speed and the amplitude traveling in opposite directions superimposed, A. Destructive interference always results B. Standing waves are produced C. Constructive interference always results D. The phase difference is always zero
  • 34.
    33. What isthe name of a vector that represents the sum of two vectors? A. Scalar B. Tensor C. Resultant D. reaction
  • 35.
    34.The standard accelerationdue to gravity is A. 32.2 ft/s² B. 980 ft/s² C. 9.81 ft/s² D. 23.3 ft/s²
  • 36.
    35. Ivory soapfloats in water because A. All matter has mass B. The specific gravity of ivory soap is less than of water C. The density if ivory soap is unity D. The specific gravity of ivory soap is less than that of water
  • 37.
    36. One gramof ice at 0°C. Assuming no heat loss, what will happen? A. Ice will become water B. Some parts of ice will not change C. The volume of ice will not change D. All of the above
  • 38.
    37. Melting ofice is A. 373K B. 273K C. 100°C D. 4°C
  • 39.
    38. The standardmeter is defined as ____ wavelengths in vacuum of the orange-red line of the spectrum of krypton 86. A. 1,560,763.73 B. 1,650,763.73 C. 1,750,763.73 D. 1,850,763.73
  • 40.
    39. Originally definedas the fraction 1/86400 the mean solar day and now defined as the duration of 9,192,631,770 periods of the radiation of a certain state of the cesium-133 atom A. Second B. Minute C. Hour D. Day
  • 41.
    40. The ratioof the density of the substance to the density of water. A. Specific weight B. Relative weight C. Specific gravity D. Mass
  • 42.
    41. The_____of asubstance is its density relative to that of pure water A. Density B. Specific weight C. Specific gravity D. Pressure
  • 43.
    42. What isanother name for specific gravity? A. Density B. Relative density C. Specific weight D. Mass
  • 44.
    43. What isthe specific gravity of water? A.1.0 B.1000 C.62.4 D.O.8
  • 45.
    44. Which isanother term for density? A.Specific gravity B.Specific weight C.Interia D.Malleability
  • 46.
    45. Which ofthe following is NOT a density of water? A.1000 kg/m3 B.9.81 kN/m3 C.1 gram / cc D.64.2 lb/ft3
  • 47.
    46. What isthe specific gravity of mercury? A.1.0 B.0.8 C.7.5 D.13.6
  • 48.
    47.Absolute zero temperature? A.32 ° F B. 0 ° C C. 4 ° K D. 0 ° K
  • 49.
    48. At whattemperature readings do the Fahrenheit and Celsius have the same value? A. -30 ° B. -35 ° C. -40 ° D. -45 °
  • 50.
    49. Dense conditionof water is at what temperature ? A. 0 ° C B. 2 ° C C. 4 °C D. 100 ° C
  • 51.
    50. Indicate theFALSE statement about temperature. A. Boiling point of centigrade scale 100 ° B. Fahrenheit scale was invented by a german. C. Absolute temperature scale is expressed in ° k D. Absolute zero in Fahrenheit scale is - 273 °
  • 52.
    51. Standard atmosphericpressure. A. 9810 N/m2 B . 13.7 psi C. 0.5 Bar D. 760 mm of Hg
  • 53.
    52. Absolute pressureequals A. Gauge pressure B. Atmospheric pressure C. Gauge pressure + atmospheric pressure D. Barometric pressure
  • 54.
    53. The differencebetween the absolute pressure and the atmospheric pressure is called A. Gauge pressure B. Barometric pressure C. 1 torr D. All of the above
  • 55.
    54. Under normalcondition, the gauge pressure at water surface is A. Less than zero B. Equal to zero C. Greater than zero D. Half the atmospheric pressure
  • 56.
    55. An instrumentto measure air pressure is the A. Thermometer B. Barometer C. Wind vane D. Pitot tube
  • 57.
    56. The atmosphericpressure at mean sea level is known as the standard atmospheric pressure and is equal to how many psi? A. 13.7 B. 14.7 C. 15.7 D. 16.7
  • 58.
    57. At constantpressure, the volume is directly proportional to temperature. This is known as A. Boyle`s law B. Charles` law C. Gay-lussac law D. Ideal gas law
  • 59.
    58. “At constanttemperature, the volume is inversely proportional to the pressure.” this is known as A. Boyle`s law B. Charles law C. Gay-lussac law D. Ideal gas law
  • 60.
    59. All arescalar quantities except A. Acceleration B. Speed C. Energy D. Temperature
  • 61.
    60. All arevector quantities except A. Displacement B. Electric field intensity C. Torque D. mass
  • 62.
    61. A vectoris a straight segment that has a definite A. Length and direction B. Direction and sense C. Length and sense D. Length , direction and sense
  • 63.
    62. The scalarproduct of two vectors are sometimes known as A. Dot product B. Resultant C. Cross product D. magnitude
  • 64.
    63. Which ofthe following is incorrect? A. All vector quantities have magnitudes B. All scalar quantities have directions C. All scalar quantities have magnitudes D. All vector quantities have directions
  • 65.
    64. The _____of two vector is obtained by adding one vector to the negative of the other. A. magnitude B. sum C. product D. difference
  • 66.
    65. The distanceper unit time. A. Speed B. Velocity C. Acceleration D. motion
  • 67.
    66. The displacementper unit time. A. speed B. Velocity C. Acceleration D. motion
  • 68.
    67. Define asthe gravitational force exerted on an object because of its attraction to some other masses such as the earth. A. Weight B. Velocity C. Acceleration D. motion
  • 69.
    68. Defined quantitativelyas the amount of the matter of which the object is made. It also refer to the measure of the objects inertia. A. Weight B. Mass C. Inertia D. Either mass or weight
  • 70.
    69. Which ofthe following statement is true? A. The weight and the mass of a body depends on its location. B. The mass of the body is independence on its location. C. The weight of the body is independence on its location. D. The weight of the body is depends on its location while the mass is independence of its location.
  • 71.
    70. Which ofthe following is true about the weight of an object? A. It is the force with which it is attracted t the earth. B. It is the same as the mass of an object. C. It is equivalent to the mass of the object divided by the gravitational acceleration. D. It is constants any where in the universe.
  • 72.
    71. A measureof inertia of a body, which is its resistance to a change in velocity. A. Force B. Mass C. Acceleration D. Moment of inertia
  • 73.
    72. A quantitativemeasure of inertia. A. Weight B. Mass C. Force D. acceleration
  • 74.
    73. Indicate thefalse statement. A. Weight of the body is gravitational force. B. Mass is the measure of the response of the body to an applied force. C. Weight of the body varies with is location. D. Weight of the body is always equal to its mass.
  • 75.
    74.A cart loadedwith gravel is hard to get started rolling because of its large. A. Mass B. Weight C. Density D. volume
  • 76.
    75. The massto which the force of one found will give an acceleration of one foot per second per second. A. Slug B. Dyne C. Erg D. Joule
  • 77.
    76. The tendencyof any object to remain at rest or to continue in motion is called A. Equilibrium B. Mass C. inertia D. static
  • 78.
    77. Any influencecapable of producing change in the motion of an object is called A. Force B. Velocity C. Acceleration D. vector
  • 79.
    78.. Which ofthe following is not unit of force? A. Pound B. Erg C. Dyne D. newton
  • 80.
    79. The unitof force which is equivalent to 1 gram-cm/sec square. A. Joule B. Slug C. Dyne D. Newton
  • 81.
    80. The productof force and displacement is called A. Energy B. Power C. Work D. momentum
  • 82.
    81. Which ofthe following is not unit of work? A. Joules B. Kilowatt-hour C. Erg D. slug
  • 83.
    82. What isthe SI unit of work? A. Joule B. Kg-m C. N-cm D. Foot-pound
  • 84.
    83. The workdone by external force ob particles is equal to the ______ of the particle. A. Change in momentum B. Impulse C. Change in kinetic energy D. Change in potential energy
  • 85.
    84. The workdone by all forces except the gravitational force is always equal to the _____ of the system. A. total potential energy B. Total impulse C. Total mechanical energy D. Total momentum
  • 86.
    85. There isno work done when A. The force is parallel to the displacement B. The force is perpendicular to the displacement. C. There is a angle between the force and the displacement. D. All of the above
  • 87.
    86. The workdone by a force of 1 newton acting through a distance of 1 m is known as A. Watt B. Erg C. Joule D. Btu
  • 88.
    87. The workdone in lifting an object of mass ‘’m’’ to a height ‘’h’’ is A. Mh B. Mgh C. Mh/g D. Mgh/2
  • 89.
    88. Indicate thefalse statement about work. A. Work = force x distance B. Work is a scallar quantity C. The unit of the work is the SI is joules and erg in the English System D. Work = power x time
  • 90.
    89. The forcedue to gravity does not work on object that A. Fall to the ground B. Is move vertically upward C. Is move parallel to the surface of the earth D. All of the above
  • 91.
    90. The rateof doing work. A. Force B. Energy C. Power D. momentum
  • 92.
    91. What isthe SI unit of power? A. Joule B. Kilowatt-hour C. Horsepower D. watt
  • 93.
    92. All areunits of power except A. Watt B. Horsepower C. Newton-meter/second D. joules
  • 94.
    93. Joule isan SI unit of A. Work B. Inertia C. Power D. momentum
  • 95.
    94. Why itis that power delivered by any machine is always less than the power supplies to it? A. Due to efficiency B. due to presence of the potential energy C. Due to its speed D. Due to the presence of friction
  • 96.
    95. The capacityto do work is called A. Power B. Energy C. Momentum D. impulse
  • 97.
    96. Kinetic energyequals A. ½ mass x velocity B. Mass x velocity C. Mass x acceleration D. ½ mass x velocity squared
  • 98.
    97. An energyof the objects motion is called A. Rest energy B. Potential energy C. Thermal energy D. Kinetic energy
  • 99.
    98. An energyby the virtue of the objects position of elevation is called A. Rest energy B. Potential energy C. Thermal energy D. Kinetic energy
  • 100.
    99. An energyby the virtue of the object mass is called A. Rest energy B. Potential energy C. Thermal energy D. Kinetic energy
  • 101.
    100. The energyof an object due to its vertical separation from the earths surface.. A. Thermal energy B. Rest energy C. Gravitational potential energy D. Elastic potential energy
  • 102.
    101. The energystored in a stretched or compressed elastic material such as a spring is called A. Thermal energy B. Elastic potential energy C. Kinetic energy D. Elastic Kinetic energy
  • 103.
    102. The kineticenergy of the atoms and the molecules due to their random motion is called A. Thermal energy B. Elastic potential energy C. Rest energy D. Heat energy
  • 104.
    103. The changein gravitational potential energy depends on the _____ of the object. A. Initial and final vertical position B. Path followed in moving between two position C. Initial and final velocity D. All of the abbove
  • 105.
    104. Kinetic meansthat it is A. In motion B. Subjected to a force C. Is in equilibrium D. Is subjected to friction
  • 106.
    105. What willhappen to the kinetic energy of the body it its velocity doubled? A. Doubled B. Quadrupled C. Tripled D. Remain the same
  • 107.
    106. Thermal energyrefers to the random kinetic energy of all _____ in a substance. A. Atoms B. Molecules C. Masses D. Atoms and molecules
  • 108.
    107. A vectorwhich is a product of mass and velocity of the body. A. Momentum B. Impulse C. Energy D. displacement
  • 109.
    108. The productof a force and the time during which it acts is known as A. Momentum B. Velocity C. Coefficient of restitution D. impact
  • 110.
    109. Momentum isthe product of mass and A. acceleration B. Velocity C. Force D. Time
  • 111.
    110. Change ofmomentum is equal to A. acceleration B. impulse C. power D. Kinetic energy
  • 112.
    111. What isthe SI of impulse A. n-s B. Kg-m/s C. Slugs/s D. N-m/s
  • 113.
    112. What isthe SI unit of momentum? A. n-s B. Kg-m/s C. Slugs/s D. N-m/s
  • 114.
    113. If thevelocity of the body is doubled in value, its _____ will also doubled. A. Acceleration B. Impulse C. Momentum D. Kinetic energy
  • 115.
    114. The negativereaction of the relative velocity after a collision to a relative velocity before a collision A. Coefficient of friction B. Coefficient of sliding C. Coefficient of kinetic friction D. Coefficient of restitution
  • 116.
    115. A collisionin which the total kinetic energy after collision is less than that before collision. A. elastic collision B. Inelastic collision C. Straight line collision D. Off center collision
  • 117.
    116. When thecolliding bodies stick together on impact which results in the maximum possible loss in kinetic energy, it is said to be ______ collision A. Elastic B. Inelastic C. Completely inelastic D. None of the above
  • 118.
    117. Which ofthe following is true about collision? A. In elastic collision, no kinetic energy is lost. B. In elastic collision, the two colliding bodies stick together after impact. C. In completely inelastic collision, no kinetic energy lost. D. Kinetic energy is not conserved in an elastic collision.
  • 119.
    118. At whatsituation when the colliding objects stops and the target moves off with the same speed after collision? A. When their masses are equal to the target is stationary. B. When the target is stationary even if their masses are not equal. C. When their masses are equal and the target is moving with a speed less than that of the colliding body. D. When their masses are equal and the target is moving with a speed greater than that of the colliding body.
  • 120.
    119. If thecolliding object has a mass greater than that of the stationary target, after the impact, the; A. Colliding object stops. B. The colliding object continues its motion in the same direction with reduced speed. C. The colliding objects continues its motion in the same direction the same speed. D. The lighter the object bounces off the heavier one.
  • 121.
    120. If thecolliding object has a mass greater than that of the stationary target, after impact, the; A. Colliding object stop. B. Colliding objects continue its motion in the same direction with reduced speed. C. The colliding objects continues its motion in the same direction the same speed. D. The lighter the object bounces off the heavier one.
  • 122.
    121. For perfectelastic collision, the coefficient of restitution, e is equal to A. 0 B. 1 C. Negative value D. Infinity
  • 123.
    122. For perfectinelastic collision, the coefficient of restitution, e is equal to A. 0 B. 1 C. Negative value D. Infinity
  • 124.
    123. In elasticcollision, A. The kinetic energy is conserved B. The kinetic energy is not conserved C. The objects sticks together after impact D. The loss of kinetic energy is maximum
  • 125.
    124. “ Forevery action, there is always an equal and opposite reaction”. This is known as A. Newton’s first law B. Newton’s second law C. Newton’s third law D. Law of inertia
  • 126.
    125. “Every bodycontinues in its state of rest or at constant speed in a straight line motion, it is compelled to change that state because of forces acting on it”. This is known as A. Newton’s first law B. Newton’s second law C. Newton’s third law D. Kepler’s law
  • 127.
    126. “An unbalancedforce acting on an object will cause the object to accelerate in the direction of the force”. This is known as A. Newton’s first law B. Newton’s second law C. Newton’s third law D. Kepler’s law
  • 128.
    127. Newton’s secondlaw of motion states that the rate of change of momentum with respect to time is A. Force B. Energy C. Power D. Work
  • 129.
    128. The accurateformulation of the laws of motions, as well as of gravitational was made by A. Galelio B. Kepler C. Varignon D. Newton
  • 130.
    129. The lawwhich describes the motion of stars, planets and comets. A. Law of universal gravitation B. Newton’s law of motions C. Kepler’s law D. Big bang and black hole
  • 131.
    130. Which ofthe following does not describe the object as observed from earth? A. Apogee B. Perigee C. Eccentricity D. Focus
  • 132.
    131. If anexternal pressure is applied in a confined fluid, the pressure will be increased at every point in the fluid by the amount of external pressure. This is known as A. Archimedes principle B. Pascal’s law C. Boyle’s law D. Bernoulli’s theorem
  • 133.
    132. According tothis law: “The force between two charges varies directly as the magnitude of each charge and inversely as the square of the distance between them”. A. Law of universal gravitation B. Coulomb’s law C. Newton’s law D. Inverse-square law
  • 134.
    133. “At anytwo points along a streamline in an ideal fluid in a steady flow, the sum of the pressure, the potential energy per unit volume and the kinetic energy per unit volume has the same value”. This concept is known as A. Pascal’s theorem B. Bernoulli’s theorem C. Hydraulic theorem D. Ideal fluid theorem
  • 135.
    134. “Whatever anet force acts on a body’ it produces an acceleration that is directly proportional to the mass of the body. This theory is popularly known as A. Faraday’s law of forces B. Newton’s second law of motion C. Newton’s first law of motion D. Hooke’s law of equilibrium
  • 136.
    135. A measureof the resistance of a body it offers to any changes in its angular velocity, determined by it mass and distribution of its mass about the axis of rotation is known as A. Moment of inertia B. Friction C. Torsion D. Angular acceleration
  • 137.
    136. In theequation E = mc², c is A. The distance between the neutral axis to the outermost fiber B. Einstein constant C. Speed of light D. Speed of sound
  • 138.
    137. The rangeof a projectile depends on A. Initial velocity only B. Initial velocity and weight of the body C. Initial velocity and angle of projection D. Initial velocity, weight of the body and angle of projection
  • 139.
    138. In atrajectory, air resistance decreases A. The speed B. The maximum height C. The range of projectile D. All of the above
  • 140.
    139. In theabsence of air resistance, a projectile sent off at an angle of Θ above the horizontal with an initial velocity of V has a horizontal range of A. R=(V²/g)sin2Θ B. R=(2VsinΘ)/g C. R=(V/g)sin2Θ D. R=(2VsinΘ)/g
  • 141.
    140. In thepreceding question, the time of flight is A. t = (2Vsin²Θ)/g B. t = (V²sin²Θ)/g C. t = (V²/g)sin2Θ D. t = (2VsinΘ)/g
  • 142.
    141. The trajectoryof a projectile is a graph of A. Circle B. Parabola C. Ellipse D. Hyperbola
  • 143.
    142. If anobject is thrown vertically upward, its acceleration A. Is smaller than that of the object thrown vertically downward B. Is equal to that of an object thrown vertically downward C. Greater than that of the object thrown vertically downward D. Zero until the object reaches maximum point
  • 144.
    143. The accelerationis _____ the resultant force on the object. A. Directly proportional to B. Inversely proportional to C. Directly proportional to the square of D. Inversely proportional to the square of
  • 145.
    144. The accelerationis ____ the mass of the object. A. Directly proportional to B. Inversely proportional to C. Directly proportional to the square of D. Inversely proportional to the square of
  • 146.
    145. Refers tothe vertical speed at which the force of air resistance is just sufficient to balance the body’s weight. A. Gravitational acceleration B. Terminal speed C. Drag D. Lift
  • 147.
    146. Objects fallingin air from the same height will not reach the ground at the same time because: A. Air resistance increases with velocity B. Falling body will eventually reaches terminal velocity C. If it reaches terminal velocity, it cannot fall any faster than that D. All of the above
  • 148.
    147. A pointon the object from which it can be suspended in any orientation without tending to rotate. A. Center of gravity B. Center of mass C. Barycenter D. All of the above
  • 149.
    148. What isanother term for centroid? A. Center of gravity B. Center of mass C. Barycenter D. All of the above
  • 150.
    149. Centrifugal forceis directly proportional to A. The square of the tangential velocity B. The tangential velocity C. Radius of curvature D. The weight of object
  • 151.
    150. The amountof heat required to change the temperature of 1pound of water 1°F. A. Calorie B. Thermal energy C. Specific heat D. British Thermal Unit (BTU)
  • 152.
    151. Calorie isdefined as the amount of heat required to raise a temperature of ____ of water 1°C. A. 1 gram B. 1 kilogram C. 1 pound D. 1 ton
  • 153.
    152. The amountof heat needed to change the temperature of a unit quantity of it by 1° A. BTU B. Heat transfer C. Temperature D. Specific heat capacity
  • 154.
    153. What isspecific heat? A. A temperature of 1 kg sample reported in °C. B. The heat needed to raise the temperature of 1 pound of water 1°F C. The energy needed to raise the temperature of 1 gram of a substance 1°C D. Any of the above
  • 155.
    154. What isthe specific heat capacity of water in kJ/kg °C? A. 4.19 B. 3.89 C. 2.19 D. 1.49
  • 156.
    155. The amountof heat must be supplied to change 1 kg of the substance at its boiling point from the liquid state to the gaseous state. A. Heat of fusion B. Heat of evaporation C. Specific heat D. BTU
  • 157.
    156. The amountof heat that must be supplied to change 1 kg of the substance and its boiling point from the liquid state to the gaseous state. A. Heat of fusion B. Heat of evaporation C. Specific heat D. BTU
  • 158.
    157. “Any bodyimmersed in a fluid is subjected to a buoyant force which is equal to the weight of the fluid displaced”. This is known as: A. Pascal’s law B. Bernoulli’s theorem C. Archimedes principle D. Venturi’s principle
  • 159.
    158. The totalhydrostatic force on plane area is directly proportional to A. Density of fluid B. Square of the pressure head C. Square of the area D. Cube of the area
  • 160.
    159. Buoyant forceis equal to A. Density of fluid x total volume B. Density of fluid x volume above the surface C. Density of fluid x volume submerged D. Specific gravity of fluid x volume submerged
  • 161.
    160. Refers tothe tendency of the liquid surface to contact to the minimum possible area in any situation. A. Ductility B. Viscosity C. Surface tension D. Capiliarity
  • 162.
    161. Refers tothe measure of the fluid’s internal friction. A. Capiliarity B. Viscosity C. Surface tension D. Laminar flow
  • 163.
    162. The _____of a machine equals to the ratio between its actual and its theoretical mechanical advantage. A. Output B. Input C. Efficiency D. Power
  • 164.
    163. Actual mechanicaladvantage is the ratio between: A. Output force to input force B. Input distance to output distance C. Output work to input work D. Power output to power input