The compression ratio for petrol engine mcq

   

MCQ  

The compression ratio for petrol engine ........

Options 

A) 1 to 5

B) 6 to 10

C) 10 to 15

D) 15 to 22

Correct answer : option B ( solution discussed below)

Solution

Petrol engine working by using otto cycle. In petrol engine suction stroke mixture of air + petrol is supplied. 

In petrol engine ignition is produce with the help of spark plug so in petrol engine low compression ratio required for burning.

If compression ratio is increased then normal then knocking probelm is produce so compression ratio of petrol engine is low. (6 to 10)

i.e. the compression ratio for petrol engine is 6 to 10.

Compression ratio of petrol engine is low than diesel engine.

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