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37.SSC JE (ME)II Thermodynamics Boster Quiz-5

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Question 1

A heat engine performs a work of 100 kJ per cycle. The efficiency of the engine of the engine is 50%. What will be the amount of heat rejected (in kJ) per cycle?

Question 2

The piston of vertical piston-cylinder device containing a gas has a mass of 60 kg and a cross-sectional area 0.04 m². The entire system is placed in a vacuum chamber. If temperature of the gas is 70⁰C. What is the pressure of gas inside the cylinder ? g = 9.8 m/s²

Question 3

When a gas flows through a very long pipe of uniform cross section, the flow approximately

Question 4

Maximum work is done in compressing air when the compression is ________.

Question 5

Gibbs free energy is considered at which one of the following condition?

Question 6

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

Question 7

As the pressure increases, the saturation temperature of the vapour

Question 8

Which of the following equation signifies reversible and possible processes using the inequality equations of Clausius ______.

Question 9

A Carnot engine operates between $Description: Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-1_files\image088.png$ and $Description: Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-1_files\image089.png$ If the engine produces 300 kJ of work, what is the magnitude of entropy change during heat rejection?

Question 10

Slope of constant pressure line on temperature entropy diagram is given by.

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