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Question

Which one of the following statements is false

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A.

In two stroke engine, the working cycle is completed in one revolution of crank

B.

Thermal efficiency of two stroke engine is less than four stroke engine

C.

There are ports in two stroke engines

D.

Thermal efficinecy of diesel engine is less than petrol engine

Answer ( Option D)

Thermal efficinecy of diesel engine is less than petrol engine

Solution

Thermal efficiency of diesel engine is more than petrol engine because of higher compression ratio

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