Internal Combustion Engines Scavenging air in diesel engine means Forced air for cooling cylinder Air used for forcing burnt gases out of engine's cylinder during the exhaust period Burnt air containing products of combustion Air used for combustion sent under pressure Forced air for cooling cylinder Air used for forcing burnt gases out of engine's cylinder during the exhaust period Burnt air containing products of combustion Air used for combustion sent under pressure ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The theoretically correct mixture of air and petrol is 15 : 1 25 : 1 10 : 1 20 : 1 15 : 1 25 : 1 10 : 1 20 : 1 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The normal heptane (C₇Hâ‚₆) is given a rating of ________ octane number. 50 120 100 50 120 100 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a four stroke cycle petrol engine, the inlet valve May open or close anywhere Opens at top dead center and closes at bottom dead center Opens at 20° after top dead center and closes at 20° before bottom dead center Opens at 20° before top dead center and closes at 40° after bottom dead center May open or close anywhere Opens at top dead center and closes at bottom dead center Opens at 20° after top dead center and closes at 20° before bottom dead center Opens at 20° before top dead center and closes at 40° after bottom dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The basic requirement of a good combustion chamber is High thermal efficiency and power output Low compression ratio Minimum turbulence Low volumetric efficiency High thermal efficiency and power output Low compression ratio Minimum turbulence Low volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines During idling, a petrol engine requires _________ mixture. None of these Rich Chemically correct Lean None of these Rich Chemically correct Lean ANSWER DOWNLOAD EXAMIANS APP
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