The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as________________?

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The term scavenging is generally associated with______________________?

A. 2-stroke cycle engines B. 4-stroke cycle engines C. aeroplane engines D. diesel engines E. high efficiency engines...

In a typical medium speed 4-stroke cycle diesel engine the inlet valve_____________________?

A. opens at 20° before top dead center and closes at 35° after the bottom dead center B. opens at top dead center and closes at bottom dead center C. opens at 10° after top dead center and closes 20° before the bottom dead center D. may open or close anywhere E. remains open for … In a typical medium speed 4-stroke cycle diesel engine the inlet valve_____________________?Read More...

Supercharging is essential in_____________?

A. diesel engines B. gas turbines C. petrol engines D. aircraft engines E. marine engines...

Normal heptane_______________?

A. accelerates auto-ignition B. helps to resist auto-ignition C. does not affect auto-ignition D. has no relation with auto-ighition E. retards auto-ignition...

In petrol engines, advancing the spark timing will_______________?

A. increase the knocking tendency B. decrease the knocking tendency C. not affect the knocking tendncy D. increase or decrease knocking tendency depending on strenght and time of spark E. unpredictable...