SSC JE Mechanical Engineering 23rd Jan 2018 Shift-1

Instructions

For the following questions answer them individually

Question 161

The bomb calorimeter is an apparatus to measure the

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Question 162

In metric system the unit of heat is given as

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Question 163

Centrifugal pump is an example of

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Question 164

A refrigeration system works on

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Question 165

Liquids have

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Question 166

The volume of the universal gas constant (Ru) is equal to

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Question 167

The solid fuel having the highest calorific value is

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Question 168

The heat transfer Q, the work done W and the change in internal energy U are all zero in the case of

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Question 169

A reversible engine operates between temperatures $$T_{1}$$ and $$T_{2}$$ . The energy rejected by this engine is received by a second reversible engine at temperature $$T_{2}$$ and rejected to a reservoir at temperature $$T_{3}$$ If the efficiencies of the engines are same then, the relationship between $$T_{1}$$ , $$T_{2}$$ and $$T_{3}$$ is given by

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Question 170

Efficiency of a Carnot engine is 75%. If the cycle direction is reversed, COP of the reversed Carnot cycle is

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