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internal combustion engine (S.i. & c.i. engine)
MCQ

In practice, the pressure rise in an SI engine during combustion is lower than that in an air standard Otto cycle for the same heat input because of , MCQ is given below:

Q13. In practice, the pressure rise in an SI engine during combustion is lower than that in an air standard Otto cycle for the same heat input because of 

(a) variable specific heat and dissociation 
(b) detonation in the farther regions from the spark plug 
(c) leakage past the piston rings 
(d) resistance to flow in the air filter


Ans: (a) variable specific heat and dissociation 



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