Questions and Answers Section 2

Questions and Answers

Question :


11.The most effective method of controlling S.I. engine exhaust emission is by

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using catalytic converter

Note:-A catalytic converter is an exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction. 

Question :


12.The power actually developed inside the engine cylinder is called as 

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indicated power

Note:-Indicated power (ip), is the power actually. developed in the cylinder. 

Question :


13.If clearance volume of I.C. engines is increased, the compression ratio will

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decrease

Question :


14.The combustion process in a Diesel engine is a

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constant pressure process




Question :


15.The compression ratio of a petrol engine is 

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varies from 10:1 to 14:1

Question :


16.The tyre rotation is generally done at 

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10000 km

Question :


17.The discharged lead-acid battery has on its plates

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lead sulphate (PbSO4) 

Question :


18.During suction stroke, the inside pressure of cylinder is

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less than the atmospheric pressure

Question :


19.In petrol engines, during suction stroke, __________ is drawn in the cylinder 

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air and fuel

Question :


20.In a four speed four stroke Diesel engine, the intake valve

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opens at 20° before T.D.C. and closes at 35° after B.D.C.