Internal Combustion Engines The mechanical efficiency (ηm) of the engine is given by ηm = (B.P × I.P)/100 ηm = B.P/I.P None of these ηm = I.P/B.P ηm = (B.P × I.P)/100 ηm = B.P/I.P None of these ηm = I.P/B.P ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Fuel consumption of diesel engines is not guaranteed at one quarter load because at such low loads The friction is high The engine is rarely operated The friction is unpredictable The small difference in cooling water temperature or in internal friction has a disproportionate effect The friction is high The engine is rarely operated The friction is unpredictable The small difference in cooling water temperature or in internal friction has a disproportionate effect ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The _________ engines can work on very lean mixture of fuel. Both (A) and (B) Compression ignition Spark ignition None of these Both (A) and (B) Compression ignition Spark ignition None of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The brake power of a diesel engine, keeping other parameters constant, can be increased by Decreasing the density of intake air Decreasing the pressure of intake air Increasing the pressure of intake air Increasing the temperature of intake air Decreasing the density of intake air Decreasing the pressure of intake air Increasing the pressure of intake air Increasing the temperature of intake air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Air fuel ratio for idling speed of a petrol engine is approximately 0.042361111111111 0.41736111111111 0.20902777777778 0.62569444444444 0.042361111111111 0.41736111111111 0.20902777777778 0.62569444444444 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Crankcase explosion in I.C. engines usually occurs as First a big explosion followed by a mil explosion Never occurs Both mild and big explosions occurs simultaneously First a mild explosion followed by a bi explosion First a big explosion followed by a mil explosion Never occurs Both mild and big explosions occurs simultaneously First a mild explosion followed by a bi explosion ANSWER DOWNLOAD EXAMIANS APP
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