A carburettor is used to supply Petrol and air Petrol, air and lubricating oil Air and diesel Petrol and lubricating oil TRUE ANSWER : ? YOUR ANSWER : ?
The increase in intake temperature of internal combustion engines will ___ efficiency. Increase Decrease None of the listed here Have no effect on TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called Volumetric efficiency Indicated thermal efficiency Overall efficiency Mechanical efficiency TRUE ANSWER : ? YOUR ANSWER : ?
The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft 2 4 1 43832 TRUE ANSWER : ? YOUR ANSWER : ?
By higher octane number of spark ignition fuel, it is meant that the fuel has Higher flash point Longer ignition delay Higher heating value Lower volatility TRUE ANSWER : ? YOUR ANSWER : ?
The calorific value of gaseous fuels is expressed in terms of kcal kcal/kg kcal/m3 kcal/m² TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following does not relate to a spark ignition engine? Spark plug Carburettor Ignition coil Fuel injector TRUE ANSWER : ? YOUR ANSWER : ?
A heat engine utilizes the Calorific value of oil High heat value of oil Low heat value of Mean heat value of oil TRUE ANSWER : ? YOUR ANSWER : ?
The working pressure and temperature inside the cylinder of an internal combustion engine is _________ as compared to a steam engine. High Low Very low Very high TRUE ANSWER : ? YOUR ANSWER : ?
The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - rγ - 1 1 + rγ - 1 1 - (1/rγ - 1) None of these TRUE ANSWER : ? YOUR ANSWER : ?