1

COMEDK 2021

MCQ (Single Correct Answer)

+1

-0

Carnot cycle of an engine is given below

Total work done by the gas in one cycle is

2

COMEDK 2020

MCQ (Single Correct Answer)

+1

-0

A compound slab is made of two parallel plates of copper and brass of the same thickness and having thermal conductivities in the ratio 4 : 1. The free face of copper is at 0$$^\circ$$C. The temperature of the interface is 20$$^\circ$$C. What is the temperature of the free face of brass?

3

COMEDK 2020

MCQ (Single Correct Answer)

+1

-0

In mm$$^3$$ of a gas is compressed at 1 atmospheric pressure and temperature 27$$^\circ$$C to 627$$^\circ$$C. What is the final pressure under adiabatic condition?

($$\gamma$$ for the gas = 1.5)

4

COMEDK 2020

MCQ (Single Correct Answer)

+1

-0

If sink is at a temperature of $$-39\Upsilon$$C and source at 0$$^\circ$$C, then efficiency will be

Questions Asked from Heat and Thermodynamics (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

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