Thermodynamics MCQ – Objective Questions & Answers

1. Carnot cycle consists of
A) Two constant volume and isothermal processes
B) Two constant pressure and isothermal processes
C) Two isothermal and isentropic processes
D) Two constant pressure and isentropic processes
Ans: C

2. Ericson cycle consists of
A) Two constant volume and isothermal processes
B) Two constant pressure and isothermal processes
C) Two constant volume and isentropic processes
D) Two constant pressure and isentropic processes
Ans: B

3. Stirling cycle consists of
A) Two constant volume and isothermal processes
B) Two constant pressure and isothermal processes
C) Two constant volume and isentropic processes
D) Two constant pressure and isentropic processes
Ans: A

4. Joule cycle consists of
A) Two constant volume and isothermal processes
B) Two constant pressure and isothermal processes
C) Two constant volume and isentropic processes
D) Two constant pressure and isentropic processes
Ans: D

5. Atkinson cycle consists of
A) Two constant volume and isothermal processes
B) Two constant pressure and isothermal processes
C) Constant volume, constant pressure and two isentropic processes
D) Two constant pressure and isentropic processes
Ans: C

6. The efficiency of superheat Rankine cycle is higher than that of simple Rankine cycle
A) The enthalpy off main stream is higher for superheat cycle
B) The mean temperature of heat addition is higher for superheat cycle
C) The temperature of steam in the condenser is high
D) The quality of steam in the condenser is low
Ans: B

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