Description : Quantities that describe both magnitude & direction a. Physical Quantity b. Scalar Quantity c. Vector Quantity d. None of the above
Last Answer : Vector Quantity
Description : It is the unbalanced force developed in a turbo jet engine that is caused by the difference in the momentum of the low-velocity air entering the engine and the high velocity exhaust gases leaving the engine. a. Fall b. Lift c. Drag d. Thrust
Last Answer : Thrust
Description : Which is true: a. Energy is a scalar quantity b. Energy is a vector quantity c. Energy is vector & scalar d. None of the above
Last Answer : Energy is a scalar quantity
Description : The acceleration of a particular body is directly proportional to the resultant force acting on it & inversely proportional to its mass. a. Pascal's Law b. Joule's Law c. Newton's Law d. None of the above
Last Answer : Newton's Law
Description : A _________ is a quantity whose value depends on the path followed during a particular change in state. a. path function b. point function c. process d. cycle
Last Answer : path function
Description : A _________ is a quantity whose value at any state is independent of the path or process used to reach that state. a. cycle b. path function c. point function d. process
Last Answer : point function
Description : Which of the following is the correct statement of the second law of thermodynamics? A. It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy ... energy, which can be obtained from a given quantity of heat energy. D. all of the above
Last Answer : Answer: D
Description : The coefficient of friction is a.The tangent of the angle between the normal reaction and direction of limiting friction b.The tangent of the angle between the normal reaction and the resultant ... e.The angle between the normal reaction and the resultant of normal reaction and the limiting friction
Last Answer : a. The tangent of the angle between the normal reaction and direction of limiting friction
Description : In order that a cycle be reversible, following must be satisfied (a) free expansion or friction resisted expansion/compression process should not be encountered (b) when heat is being absorbed, temperature of hot ... sub-stance should be same (d) all of the above (e) none of the above.
Last Answer : Answer : d
Description : The Product of the displacement of the body and the component if the force in the direction of the displacement. a. Nonflow Work b. Flow Work c. Work d. None of the above
Last Answer : Work
Description : Archimedes principle states that a. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is equal to the weight of the displaced fluid b. ... fluid exerts a downward force on the body whose magnitude is lower than the weight of the displaced fluid.
Last Answer : when a body is inversed in a fluid, the fluid exerts a upward force on the body whose magnitude is equal to the weight of the displaced fluid.
Description : A car whose mass is 2 metric tons is accelerated uniformly from stand hill to 100 kmph in 5 sec. Find the driving force in Newton’s. a. 11,120 N b. 11,320 N c. 11,420 N d. 11520 N formula: F= ma / k
Last Answer : 11,120N
Description : Energy can neither created nor destroyed. It can only change forms. a. Conservation of Mass Principle b. Conservation of Energy Principle c. Conservation of Momentum Principle d. Conservation of Heat Principle
Last Answer : Conservation of Energy Principle
Description : The first law of thermodynamics is the: A. Law of conservation of momentum B. Law of conservation of mass C. Law of conservation of power D. Law of conservation of energy
Last Answer : Law of conservation of energy
Description : The first law of thermodynamics is the law of (a) conservation of mass (b) conservation of energy (c) conservation of momentum (d) conservation of heat (e) conservation of temperature.
Last Answer : Answer : b
Description : Absolute zero pressure will occur (a) at sea level (b) at the center of the earth (c) when molecular momentum of the system becomes zero (d) under vacuum conditions (e) at a temperature of – 273 °K
Last Answer : Answer : c
Description : The energy of molecular motion appears as (a) heat (b) potential energy (c) surface tension (d) friction (e) increase in pressure.
Last Answer : Answer : a
Description : The rate at which this is quantity passes through a fixed boundary per unit time a. Flux b. Existence c. Irradiance d. All of these
Last Answer : All of these
Description : What is defined as the quantity of heat needed to raise the temperature of one kilogram of water by one degrees Celsius? a. Kilojoule b. Btu c. Kilocalorie d. Latent heat
Last Answer : Kilocalorie
Description : ______ of a Body is the absolute quantity of a matter in it. a. Mass b. Weight c. Density d. Volume
Last Answer : Mass
Description : “If the temperature o f a fixed quantity of a gas is held constant during a change of state, the volume varies inversely with the absolute pressure. a. Charle’s Law b. Boyle’s Law c. Dalton’s Law d. Amagat’s Law
Last Answer : Boyle’s Law
Description : _________ is the quantity of heat required to raise the temperature of one pound of water 1 F˚ from 63 ˚F to 64 ˚F. a. one Joule b. one calorie c. one watt d. one BTU
Last Answer : one BTU
Description : What law asserts that energy has quality as well as quantity? A. First law of Thermodynamics B. Second law of Thermodynamics C. Third law of Thermodynamics D. Zeroth law of Thermodynamics
Last Answer : Second law of Thermodynamics
Description : Calorie is a measure of (a) specific heat (b) quantity of heat (c) thermal capacity (d)entropy (e) work.
Description : Which of the following is scalar quantity a.Area of triangle b.Displacement of a particle c.Acceleration of car d.Force of friction e.Velocity a gear
Last Answer : a. Area of triangle
Description : What refers to the series of state through which a system passes during a process? A. Path B. Phase C. Cycle D. Direction
Last Answer : Path
Description : The angle of friction is a.The angle which frictional force makes with the normal b.The anle at which the force applied from external souce will cause movement c.The angle at which fictional ... the normal reaction and the resultant of normal reaction and the limiting friction e.None of the above
Last Answer : d. The angle between the normal reaction and the resultant of normal reaction and the limiting friction
Description : A fluid flows in a steady manner between two section in a flow line at section 1: A 1 = 1ft², V1 = 100fpm, volume1 of 4ft³/lb. at sec2: A2 = 2 ft², p= 0.20 lb/ft³ calculate the velocity at section 2. a. 625 fpm b. 567 fpm c. 356 fpm d. None of the above
Last Answer : 625 fpm
Description : Water flowing at a 6m/s through a 60 mm pipe is suddenly channeled into a 30 mm pipe. What is the velocity in the small pipe? a. 34m/s b. 24m/s c. 15m/s d. 27m/s
Last Answer : 24m/s
Description : A 600kg hammer of a pile driver is lilted 2m the pilling head. What is the change of potential energy? If the hammer is realest. What will be its velocity and the instant if it sticks the pilling? a. 10,772 N-m and 5.26m/s ... c. 11,772 N-m and 6.26m/s d. 11,77 2N-m and5.26m/s ∫PE = mgo(∫Z)/gc
Last Answer : 11,772 N-m and 6.26m/s
Description : Calculate: a. Mass flow rate in lb/hr. b. The velocity at section 2 in fps a. 800,000lb/hr;625ft/s b. 900,000lb/hr;625 ft/s c. 888,000lb/hr;269 ft/s d. 700,000lb/hr;269 ft/s m = A1V!/V1
Last Answer : 900,000 lb/hr;625 ft/s
Description : The distribution of particle speeds in an ideal gas at a given temperature. a. velocity of propagation b. escape velocity c. Maxwell speed Distribution d. terminal velocity
Last Answer : Maxwell speed Distribution
Description : The molecules of a gas moving through space with some velocity possesses what kind of energy? A. Translational energy B. Spin energy C. Rotational kinetic energy D. Sensible energy
Last Answer : Translational energy
Description : A temperature scale whose zero point is absolute zero, the temperature of “0” entropy at which all molecular motion stops. a. Celsius b. Fahrenheit c. Kelvin d. Rankine
Last Answer : Kelvin
Description : What refers to a liquid whose temperature is lower than saturation temperature corresponding to the existing pressure? a. Subcooled liquid b. Saturated liquid c. Pure liquid d. Compressed liquid
Last Answer : Subcooled liquid
Description : A system whose boundary does not allow the exchange of either matter or energy with the surrounding a. open system b. closed system c. isolated system d. none of the above
Last Answer : isolated system
Description : Two thick slices of bread, when completely oxidized by the body, can supply 200,000 cal of heat. How much work is this equivalent to? a) 4,190,000 joules b) 8,390,000 joules c) 839, ... d) 419 000 joules Formula: J =Work/Heat J = mechanical equivalent of heat whose value is 4.19 joules/calorie
Last Answer : 419 000 joules
Description : How many joules of work is the equivalent of 15000 cal of heat? a) 62850 joules b) 3579.95 joules c) 14995.81 joules d) 15004.19 joules Formula: J =Work/Heat J = mechanical equivalent of heat whose value is 4.19 joules/calorie
Last Answer : 62850 joules
Description : A problem Drum ( 3 ft. diameter ; 6 ft. height ) is field with a fluid whose density is 50 lb/ft^3. Determine the total volume of the fluid. A. 42.41 ft^3 B.44.35 ft^3 C.45.63 ft^3 D.41.23 ft^3 Formula: Vf = (pi d^2 h) / 4
Last Answer : 42.41 ft^3
Description : An ideal gas whose specific heats are constant is called _____. A. Perfect gas B. Natural gas C. Artificial gas D. Refined gas
Last Answer : Perfect gas
Description : The thermodynamic property of a system is said to be an intensive property whose value for the entire system __________ the sum of their value for the individual parts of the system. A. is equal to B. is not equal to
Last Answer : Answer: B
Description : According to Kelvin-Planck's statement of second law of thermodynamics, A. it is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work B. it ... other than the transfer of heat from a cold body to a hot body D. none of the above
Last Answer : Answer: A
Description : A perpetual motion machine is (a) a thermodynamic machine (b) a non-thermodynamic machine (c) a hypothetical machine (d) a hypothetical machine whose opera-tion would violate the laws of thermodynamics (e) an inefficient machine.
Description : Extensive property of a system is one whose value (a) depends on the mass of the system like volume (b) does not depend on the mass of the system, like temperature, pressure, etc. (c) is not ... the state (d) is dependent on the path followed and not on the state (e) is always constant.
Description : Intensive property of a system is one whose value (a) depends on the mass of the system, like volume (b) does not depend on the mass of the system, like temperature, pressure, etc. (c) is not ... on the state (d) is dependent on the path followed and not on the state (e) remains constant.
Description : __________ is the unit of force. a) Newton b) Pascal c) Hertz d) Joule
Last Answer : Newton
Description : Is the force of gravity on unit volume? a. Specific Weight b. Specific Heat c. Specific Pressure d. Specific Volume
Last Answer : Specific Weight
Description : _______ of a body means the force of the gravity Fg on the body a. Mass b. Weight c. Density d. Volume
Last Answer : Weight
Description : It involves a force deforming a solid body a. non-elastic work b. non-flow work c. flow work d. elastic work
Last Answer : elastic work
Description : What is the force required to accelerate amass of 30kg at a rate of 15m/s². a. 460 N b. 380 N c. 560 N d. 450 N F = ma
Last Answer : 450 N