1000+Thermodynamics MCQ Questions and Answers - 1

Question: 1

The statement that energy can be neither created nor destroyed but only converted from one form to another, is known as

(A) avogadro’s hypothesis

(B) first law of thermodynamics

(C) kinetic theory of gases

(D) zeroth law of thermodynamics

Ans: B

first law of thermodynamics

Question: 2

The process or system that do not involve heat are called

(A) adiabatic process

(B) equilibrium processes

(C) thermal processes

(D) isothermal processes

Ans: A

adiabatic process

Question: 3

In an isothermal process

(A) change in internal energy is zero

(B) pressure remains constant

(C) volume remains constant

(D) temperature increases gradually

Ans: A

change in internal energy is zero

Question: 4

Diesel cycle processes are

(A) two constant pressure, one constant volume, one isentropic

(B) two isentropic, one constant volume one constant pressure

(C) two constant volume, one constant pressure, one isothermal

(D) isentropic, isothermal, constant volume, constant pressure

Ans: B

two isentropic, one constant volume one constant pressure

Question: 5

The extension and compression of a helical spring is an example of

(A) adiabatic process

(B) isothermal process

(C) reversible process

(D) thermodynamic cycle

Ans: C

reversible process

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