Internal Combustion Engines The thermal efficiency of petrol and gas engines is about 0.15 0.3 0.5 0.7 0.15 0.3 0.5 0.7 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines As a result of detonation in an I.C. engine, following parameter attains very high value Peak pressure Rate of rise of pressure Peak temperature Rate of rise of temperature Peak pressure Rate of rise of pressure Peak temperature Rate of rise of temperature 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 V₁/(V₀ + V₁) V₀/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] (V₀/V₁)/ [1 + (V₀/V₁)²] V₁/(V₀ + V₁) V₀/(V₀ + V₁) [2(V₀/V₁)]/ [1 + (V₀/V₁)²] (V₀/V₁)/ [1 + (V₀/V₁)²] ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the The diameter of the jet is constant and the discharge coefficient is invariant Flow is produced due to the static head in the float chamber The flow from the main jet is diverted to the compensating jet with increase in speed Jet area is automatically varied depending on the suction The diameter of the jet is constant and the discharge coefficient is invariant Flow is produced due to the static head in the float chamber The flow from the main jet is diverted to the compensating jet with increase in speed Jet area is automatically varied depending on the suction ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a typical medium speed, 4-stroke cycle diesel engine May start and end anywhere Fuel injection starts at 10° before top dead center and ends at 20° after top dead center Fuel injection starts at top dead center and ends at 20° after top dead center Fuel injection starts at just before top dead center and ends just after top dead center May start and end anywhere Fuel injection starts at 10° before top dead center and ends at 20° after top dead center Fuel injection starts at top dead center and ends at 20° after top dead center Fuel injection starts at just before top dead center and ends just after top dead center ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft 2 43832 4 1 2 43832 4 1 ANSWER DOWNLOAD EXAMIANS APP
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