SSC JE Mechanical Engineering 4th March 2017 Shift-1

Instructions

For the following questions answer them individually

Question 21

Calculate the enthalpy of 3 kg of fluid that occupies a volume of 1.5 m3, if the internal energy is 3.5 M Joules/kg and the pressure is 0.3 MN/m$$^2$$

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Question 22

When a process undergoes a complete cycle then the change of entropy will be

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Question 23

Following relationship defines the Gibb's free energy G

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Question 24

During a process on the closed system its internal energy increases by twice the units than the heat added to it. It is possible due to

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Question 25

Fusion curve on p-t diagram for all substances possesses the following slope

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Question 26

When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by:

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Question 27

Which of the following is a case of steady state heat transfer?

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Question 28

The time constant of a thermocouple is

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Question 29

Which of the following is expected to have highest thermal conductivity

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Question 30

The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface, is known as

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