Internal Combustion Engines The knocking in diesel engines may be prevented by All of these Reducing the delay period Increasing the inlet pressure of air Raising the compression ratio All of these Reducing the delay period Increasing the inlet pressure of air Raising the compression ratio ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The expansion of fuel in a four stroke cycle diesel engine May start and end anywhere Starts at 15° after top dead center and ends at 30° before bottom dead center Starts at top dead center and ends at 30° after top dead center Starts at 15° before top dead center and ends at 30° after top dead center May start and end anywhere Starts at 15° after top dead center and ends at 30° before bottom dead center Starts at top dead center and ends at 30° after top dead center Starts at 15° before top dead center and ends at 30° after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Pick up the wrong statement about supercharging Supercharging at high altitudes is essential Supercharging results in fuel economy Supercharging reduces knocking in diesel engines There can be limited supercharging in petrol engines because of detonation Supercharging at high altitudes is essential Supercharging results in fuel economy Supercharging reduces knocking in diesel engines There can be limited supercharging in petrol engines because of detonation ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In petrol engines, the delay period is of the order of 0.003 second 0.001 second 0.002 second 0.004 second 0.003 second 0.001 second 0.002 second 0.004 second ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of 75% iso-octane and 25% normal heptane 75% normal heptane and 25% iso-octane 75% petrol and 25% diesel 75% diesel and 25% petrol 75% iso-octane and 25% normal heptane 75% normal heptane and 25% iso-octane 75% petrol and 25% diesel 75% diesel and 25% petrol ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - (1/rγ - 1) 1 - rγ - 1 1 + rγ - 1 None of these 1 - (1/rγ - 1) 1 - rγ - 1 1 + rγ - 1 None of these ANSWER DOWNLOAD EXAMIANS APP
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