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THERMODYNAMICS INTRODUCTION MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS

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THERMODYNAMICS INTRODUCTION

MULTIPLE QUESTION ANSWERS

(MCQ) WITH ANSWERS 

MCQ on Thermodynamics increases deep

understanding as well as clarity. It will be

helpful in applying the basic principals in

real practical applications.

 

  1. Temperature is a

(a) Derived quantity

(b) Supplementary quantity

© Fundamental quantity

(d) None

ANS: ©

  1. A closed thermodynamic system involves the use of

    • (a) Only mass

    • (b) Only Energy

    • (c) Mass and energy

    • (d) None

ANS: (d)

  1. A thermodynamic system is a

    • (a) 3 dimensional space

    • (b) 2- dimensional area

    • (c) 1-D line

    • (d) None

ANS: (a)

  1. In an open thermodynamic system, there is interaction of

    • (a) Mass only

    • (b) Energy only

    • (c) Mass as well as energy

    • (d) None

ANS: ©

  1. In an open thermodynamic system, there is interaction of

(a). Mass only

(b) Energy only

© Mass  as well as energy

(d) None

ANS: (d)

  1. After number of thermodynamic processes, we reach the starting point, then it is a case of a

                 (a) Thermodynamic equilibrium

    • (b) Zeroth law of thermodynamics

    • (c) Thermodynamic cycle

    • (d) None

ANS: ©

  1. Specific volume is an

    • (a) Extensive property

    • (b) Intensive property

    • (c) Neither extensive nor intensive property

    • (d) None

ANS: (b)

  1. Which is the extensive property?

    • (a) Temperature

    • (b) Pressure

    • (c) Internal energy

    • (d) None

ANS: ©

  1. Which is the intensive property?

    • (a) Temperature

    • (b) Internal energy

    • (c) Volume

    • (d) None

ANS: (a)

  1. Kelvin-Planck’s statement of Second law of thermodynamics deals with

    • (a) Conservation of energy

    • (b) Conservation of work

    • (c) Conservation of mass

    • (d) None

ANS: (d)

  1. Kelvin-Planck’s statement of Second law of thermodynamics deals with

  • (a) Heat Transfer

  • (b) Mass transfer

  • (c) Conversion of heat into work

  • (d) None

ANS: (c)

  1. First law of thermodynamics deals with

    • (a) Conservation of momentum

    • (b) Conservation of work

    • (c) Conservation of mass

    • (d) None

ANS: (d)

  1. Clausius statement of Second law deals with

    • (a) Mass transfer

    • (b) Momentum transfer

    • (c) Heat transfer

    • (d) None

ANS: (c)

  1. Thermodynamics deals with

    • (a) Conservation

    • (b) Conversion

    • (c) Transfer

    • (d) None

ANS:(b)

  1. Which of these is a fundamental quantity?

    • (a) Velocity

    • (b) Density

    • (c) Force

    • (d) None

ANS:(d)

  1. Which of these is a derived quantity?

    • (a) Mass

    • (b) Temperature

    • (c) Thermal conductivity

    • (d) None

ANS: ©

  1. One Newton force is equal to

    • (a) 1 kg x 9.81 m/s2

    • (b) 1 kg x 1 m/s2

    • (c) 1 kg x 4.184 m/s2

    • (d) None

ANS: (b)

  1. Second Law of Thermodynamics deals with

    • (a) Enthalpy

    • (b) Internal energy

    • (c) Entropy

    • (d) None

ANS: ©

  1. Thermodynamic state of a gas can be represented by

    • (a) Pressure, temperature and enthalpy

    • (b) pressure, temperature and entropy

    • (c) Pressure, temperature and internal energy

    • (d) None

ANS: ( d)

  1. Absolute pressure is

    • (a) Atmospheric pressure – gage pressure

    • (b) Atmospheric pressure –vacuum pressure

    • (c) Atmospheric pressure + vacuum pressure

    • (d) None

ANS: (b)

  1. Which of the following energy is the transit energy?

  • (a) Potential energy

  • (b) Kinetic energy

  • (c) Internal energy

  • (d) None

ANS: (d)

  1. Which of the following is the stored energy?

  • (a) Heat

  • (b) Work

  • (c) Electrical energy

  • (d) None

ANS: (d)

23. Internal energy of a substance is a function of only

(a) Temperature
(b) Pressure
(c) Velocity
(d) None
(Ans: a)

24. Potential energy of a substance is a function of only

(a) Temperature
(b) Pressure
(c) Velocity
(d) None
(Ans: d)

25. Kinetic energy of a substance is a function of only

(a) Temperature
(b) Pressure
(c) Velocity
(d) None
(Ans: c)

26. Total heat of a substance is a function of only

(a) Temperature
(b) Pressure
(c) Velocity
(d) None
(Ans: d)

27. Absolute pressure is

(a) Gauge pressure – Atmospheric pressure
(b) Atmospheric pressure – Gauge pressure
(c) Atmospheric pressure + static pressure
(d) None
(Ans: d)

28. All mediums have

(a) One specific heat
(b) Two specific heats
(c) Three specific heats
(d) None
(Ans: b)

29. In which medium the specific heats are unequal.

(a) Solids
(b) Gases
(c) Liquids
(d) None
(Ans: b)

30. In which medium the specific heats are equal.

(a) Solids and gases
(b) Liquids and gases
(c) Solids and liquids
(d) None
(Ans: c)

31. Sensible heat changes the

(a) Temperature
(b) Pressure
(c) Temperature as well as pressure
(d) None
(Ans: a)

32. Latent heat changes the

(a) Temperature
(b) Pressure
(c) Temperature as well as pressure
(d) None
(Ans: d)

33. Latent heat changes the

(a) Temperature
(b) Pressure
(c) Volume
(d) None
(Ans: c)

34. Latent heat changes the

(a) Temperature
(b) Pressure
(c) Phase
(d) None
(Ans: c)

35.The value of the latent heat of steam at 1000C and at 1 atmospheric pressure is

(a) 2557 0C

(b) 2257 0C

(c) 2457 0C

(d) None

(Ans: b)

36. In the equation p V = n R t, R is

(a) gas Constant

(b) Universal constant

(c) neither gas constant nor Universal constant

(d) None

(Ans: b)

37. In the equation p V = m R t, R is

(a) gas Constant

(b) Universal constant

(c) neither gas constant nor Universal constant

(d) None

(Ans: a)

38.  What will be pressure of a gas become if a fixed mass of the gas in a rigid container is heated from 100C to 300C?

  1. Firstly pressure becomes three times

  2. Secondly pressure becomes one third

  3. Thirdly pressure remains the same

  4. None

Ans: (iv)

39.  Which gas will have the largest number of moles under the same conditions of temperature and pressure?

  1. CH4

  2. C2H6

  3. NH4

  4. None

Ans: (i)

40. The gas constant Rg is equal to the

  1. Universal gas constant, RU

  2. RU X Molecular weight

  3. RU/Molecular weight

  4. None

Ans:(iii)

https://www.mesubjects.net/wp-admin/post.php?post=6231&action=edit                   MCQ thermodynamic processes

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