The actual volume of fresh charge admitted in 4-stroke petrol engine is Less than stroke volume Equal to stroke volume Equal to stroke volume and clearance volume More than stroke volume TRUE ANSWER : ? YOUR ANSWER : ?
An hmh flame speed is obtained in diesel engine when air fuel ratio is Uniform throughout the mixture About 10% of rich mixture Chemically correct mixture About 35% of rich mixture TRUE ANSWER : ? YOUR ANSWER : ?
The basic requirement of a good combustion chamber is Minimum turbulence Low compression ratio Low volumetric efficiency High thermal efficiency and power output TRUE ANSWER : ? YOUR ANSWER : ?
A fuel of cetane number 40 has the same ignition quality as a mixture of 40% petrol and 60% diesel 40% alpha methyl naphthalene and 60% cetane 40% diesel and 60% petrol 40% cetane and 60% alpha methyl naphthalene TRUE ANSWER : ? YOUR ANSWER : ?
In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as Supercharging Scavenging Detonation Polymerisation TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement is correct regarding petrol engines? All of these The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug TRUE ANSWER : ? YOUR ANSWER : ?
If the compression ratio in I.C. engine increases, then its thermal efficiency will Remain same Decrease Increase None of these TRUE ANSWER : ? YOUR ANSWER : ?
Scavenging is usually done to increase Speed Power output Thermal efficiency Fuel consumption TRUE ANSWER : ? YOUR ANSWER : ?
The power actually developed by the engine cylinder of an I.C. engine is known as Theoretical power Actual power None of the listed here Indicated power TRUE ANSWER : ? YOUR ANSWER : ?