Internal Combustion Engines The ignition of the charge by some hot surface within the engine before the passage of spark is called Ignition delay Detonation Auto-ignition Pre-ignition Ignition delay Detonation Auto-ignition Pre-ignition ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed 4-stroke cycle diesel engines Exhaust valve opens just after bottom dead center and closes just before top dead center Exhaust valve opens at bottom dead center and closes at top dead center May open and close anywhere Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center Exhaust valve opens just after bottom dead center and closes just before top dead center Exhaust valve opens at bottom dead center and closes at top dead center May open and close anywhere Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The brake power of a diesel engine, keeping other parameters constant, can be increased by Increasing the temperature of intake air Decreasing the pressure of intake air Decreasing the density of intake air Increasing the pressure of intake air Increasing the temperature of intake air Decreasing the pressure of intake air Decreasing the density of intake air Increasing the pressure of intake air ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the percentage increase in efficiency will be 0.04 0.08 0.14 0.02 0.04 0.08 0.14 0.02 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The volumetric efficiency of a well designed engine may be 60 to 70% 75 to 90% 30 to 40% 40 to 60% 60 to 70% 75 to 90% 30 to 40% 40 to 60% ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The sensing element in the control system of nuclear reactors measures the _________ of the neutron flux in the reactor. Density Temperature None of these Volume Density Temperature None of these Volume ANSWER DOWNLOAD EXAMIANS APP
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