An engineer claims to have made an engine delivering 10 kW power with fuel consumption of 1 g/sec. The calorific value of the fuel is 2 kcal/g. How is the claim of the engineer ?

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Valid

Invalid

Depends on engine design

Depends of the load

answer is B.

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Detailed Solution

Input energy 1 x 2 x 1000 x 4.2 joules/sec and output is 10x1000 joules /sec. Output is greater than input which is impossible.

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