Thermodynamics MCQ

Practice Best Thermodynamics MCQ Quiz to Test Your Knowledge

We have listed below the best Thermodynamics MCQ Questions test that checks your basic knowledge of Thermodynamics. This Thermodynamics MCQ Test contains around 20+ Thermodynamics Multiple Choice Questions. You have to select the right answer to a question to check your final preparation for Thermodynamics Exam or Interview. apart from this, you can also download below the Thermodynamics MCQ PDF completely free.

Thermodynamics MCQ Test Quiz

1) Which of the following laws is applicable for the behaviour of perfect gas?

  • A. Charle's law
  • B.Boyle's law
  • C.Gas-Lussac law
  • D.All of these

2) The locus of standard liquid line and standard vapour line meets at -

  • A. Boiling point
  • B.Critical point
  • C.Ice point
  • D.Triple point

3) According to kinetic theory of gases,the absolute zero temperature is attained when -

  • A. Kinetic energy of the molecules is zero
  • B.Pressure of the gas is zero
  • C.Volume of gas is zero
  • D.Specific heat of gas is zero

4) The ratio of the indicated thermal efficiency to the air standard efficiency is called

  • A. Overall efficiency
  • B.Mechanical efficiency
  • C.Relative efficiency
  • D.Volumetric efficiency

5) The unit of temperature in S.I. units is

  • A. Celsius
  • B.Centigrade
  • C.Fahrenheit
  • D.Kelvin
Download Free : Thermodynamics MCQ PDF

6) N.T.P. stands for -

  • A. Normal temperature and pressure
  • B.Natural temperature and pressure
  • C.Nominal temperature and pressure
  • D.Normal thermodynamic pressure

7) Which of the following is true for a steady flow system?

  • A. mass does not enter or leave the system
  • B.mass entering can be more or less than the mass leaving
  • C.mass entering = mass leaving
  • D.None of the mentioned

8) which of the following does not changed in a steady flow system?

  • A. volume
  • B.mass
  • C.both of the mentioned

9) Availability function for a closed system is given by

  • A. U-pV-TS
  • B.U+pV-TS
  • C.U-pV+TS
  • D.U+pV+TS

10) When the system is in equilibrium with the surroundings, it must be in

  • A. pressure equilibrium
  • B.temperature equilibrium
  • C.chemical equilibrium
  • D.All of the Above

11) All spontaneous processes terminate at the dead state.

  • A. true
  • B.false

12) If the process is irreversible, the useful work is less than the maximum.

  • A. true
  • B.false

13) A thermodynamically efficient process would involve ____ exergy loss with ____ rate of entropy generation.

  • A. maximum, maximum
  • B.minimum, minimum
  • C.minimum, maximum
  • D.maximum, minimum

14) A system consisting of more than one phase is known as

  • A. Open system
  • B.Isolated system
  • C.Heterogeneous system
  • D.Closed system

15) The processes or systems that do not involve heat are called

  • A. Equilibrium processes
  • B.Adiabatic processes
  • C.Isothermal processes
  • D.Steady processes

16) The internal energy of a substance depdnds on

  • A. Pressure
  • B.Volume
  • C.Temperature
  • D.Velocity

17) During throttling process

  • A. Entropy does not change
  • B.Enthalpy does not change
  • C.Internal energy does not change
  • D.Pressure does not change

18) The gas turbine works on

  • A. Rankine cycle
  • B.Carnot cycle
  • C.Brayton cycle
  • D.Erricson cycle

19) The process that follows the equation pvn = constant, is called

  • A. Polytropic process
  • B.Adiabatic process
  • C.Constant volume process
  • D.Constant pressure process

20) The solubility of a gas in a liquid at small concentration is represented by

  • A. Claperyon equation
  • B.Roults law
  • C.Joules equation
  • D.Henry's law

21) Addition Of Heat At Constant Pressure To A Gas Results In

  • A. Raising its temperature
  • B.Raising its pressure
  • C.Raising its volume
  • D.Raising its temperature and doing external work

22) How Does A Refrigerator Work?

  • A. Moves heat from inside the fridge to the room
  • B.Blows cold air into the fridge
  • C.Uses convection cells
  • D.It generates cold air

23) Carbonization Of Coal Consists Of

  • A. Drying and crushing the coal to a fine powder
  • B.Moulding the finely ground coal under pressure with or without a binding material
  • C.Heating the wood with a limited supply of air to temperature not less than 280°C
  • D.None of the above

24) The Absolute Zero Pressure Can Be Attained At A Temperature Of

  • A. 0°C
  • B.-273°C
  • C.273 K
  • D.None of these

25) How Are Solids Different From Liquids?

  • A. particles in solids are moving freely around each other.
  • B.particles in solids have no motion.
  • C.particles in solids are vibrating in place.
  • D.particles in solids have more motion than in liquids

26) What Happens To Particles When They Are Heated?

  • A. They speed up and spread out
  • B.They slow down and compress
  • C.They stop moving
  • D.They move closer together and speed up

27) Which Of The Following Has The Highest Calorific Value?

  • A. Anthracite coal
  • B.Bituminous coal
  • C.Peat
  • D.Lignite

28) Which Of The Following Gas Has The Highest Calorific Value?

  • A. Coal gas
  • B.Producer gas
  • C.Mond gas
  • D.Blast furnace gas

29) Which Of The Following Is NOT A Conductor?

  • A. oven mitt
  • B.curling iron
  • C.iron skillet
  • D.copper pipe

30) Mixture Of Ice And Water Form A

  • A. Closed system
  • B.Open system
  • C.Isolated system
  • D.Heterogeneous system

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