The operation of forcing additional air under pressure into the engine cylinder is known as Turbulence Supercharging Delay period Carburetion TRUE ANSWER : ? YOUR ANSWER : ?
If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is V₁ / (V₀ + V₁) 2V₁ / (V₀ + V₁) V₀ / (V₀ + V₁) 2V₀ / (V₀ + V₁) TRUE ANSWER : ? YOUR ANSWER : ?
The correct sequence of the decreasing order of brake thermal efficiency of the three given basic types of engines is Four stroke C.I. engine, two stroke S.I. engine, four stroke S.I. engine Two stroke S.I. engine, four stroke S.I. engine, four stroke C.I. engine Four stroke S.I. engine, four stroke C.I. engine, two stroke S.I. engine Four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine TRUE ANSWER : ? YOUR ANSWER : ?
A heat engine utilizes the Mean heat value of oil High heat value of oil Low heat value of Calorific value of oil TRUE ANSWER : ? YOUR ANSWER : ?
In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then ___ is employed. Fuel pump Injector Carburettor None of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
The theoretically correct air fuel ratio for petrol engine is of the order of 0.50069444444444 0.37569444444444 0.25069444444444 0.62569444444444 TRUE ANSWER : ? YOUR ANSWER : ?
The following volume of air is required for consuming 1 liter of fuel by a four stroke engine 910 m3 1 m3 5 m3 56 m3 TRUE ANSWER : ? YOUR ANSWER : ?
The pressure at the end of compression, in petrol engines, is approximately 10 bar 25 bar 35 bar 20 bar TRUE ANSWER : ? YOUR ANSWER : ?
Volatility of diesel fuel oil is Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off It catches fire without external aid Temperature at which it solidifies or congeals TRUE ANSWER : ? YOUR ANSWER : ?
In a four stroke cycle petrol engine, the charge is ignited at 30° before top dead center 30° after top dead center 30° before bottom dead center 30° after bottom dead center TRUE ANSWER : ? YOUR ANSWER : ?