Internal Combustion Engines The thermal efficiency of petrol and gas engines is about 0.15 0.5 0.3 0.7 0.15 0.5 0.3 0.7 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A two stroke cycle engine gives ________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed. Half Same Four times Double Half Same Four times Double ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The advancing of spark timing in spark ignition engines will ___ knocking tendency. Increase Reduce Not effect None of the listed here Increase Reduce Not effect None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The delay period in compression ignition engines depends upon All of these Relative velocity between the fuel injection and air turbulence pressure of residual gases Nature of the fuel mixture strength Temperature and pressure in the cylinder at the time of injection All of these Relative velocity between the fuel injection and air turbulence pressure of residual gases Nature of the fuel mixture strength Temperature and pressure in the cylinder at the time of injection ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Pick up the wrong statement about supercharging Supercharging reduces knocking in diesel engines Supercharging results in fuel economy There can be limited supercharging in petrol engines because of detonation Supercharging at high altitudes is essential Supercharging reduces knocking in diesel engines Supercharging results in fuel economy There can be limited supercharging in petrol engines because of detonation Supercharging at high altitudes is essential ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) V₀/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] [2(V₀/V₁)]/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) V₀/(V₀ + V₁) (V₀/V₁)/ [1 + (V₀/V₁)²] ANSWER DOWNLOAD EXAMIANS APP
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