If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the %age increase in efficiency will be________________?

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In a typical medium speed, 4-stroke cycle diesel engine ___________________?

A. fuelinjection starts at 10° before to dead center and ends at 20° after tor dead center B. fuel injection starts at top dead center and ends at 20° after top dead center C. fuel injection starts at just before top dead center and ends just after top deac center D. may start and end … In a typical medium speed, 4-stroke cycle diesel engine ___________________?Read More...

Gaseous-fuel guarantees are based on___________________?

A. calorific value of oil B. low heat value of oil C. high heat value of oil D. mean heat value of oil E. all of the above...

The function of a fuel pump in a petrol pump is to______________________?

A. inject fuel in cylinder B. supply fuel when carburettor fails C. pump fuel so that it reaches carburettor (to improve thermal efficiency) D. does not exist...

Theoretically, the following engine should have maximum efficiency________________?

A. gas engine B. 2-stroke S.I. engine C. 4-stroke S.I. engine D. steam engine E. 4-stroke C.I. engine...

With increase in engine speed, the ignition of spark in petrol engine has to be __________________?

A. Unaltered B. Increased C. Decreased D. Advanced...