Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m. Equal to One-half Twice Four-times TRUE ANSWER : ? YOUR ANSWER : ?
Diesel as compared to petrol is None of these More difficult to ignite Highly ignitable Less difficult to ignite TRUE ANSWER : ? YOUR ANSWER : ?
Alpha-methyl-naphthalene (<math xmlns="http://www.w3.org/1998/Math/MathML" class="wrs_chemistry"><msub><mi>C</mi><mn>11</mn></msub><msub><mi>H</mi><mn>10</mn></msub></math>) has a cetane number of 0 50 120 100 TRUE ANSWER : ? YOUR ANSWER : ?
Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged? No To some extent Yes Unpredictable TRUE ANSWER : ? YOUR ANSWER : ?
The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed 180°C 80°C 240°C 120°C TRUE ANSWER : ? YOUR ANSWER : ?
The air-fuel ratio of the petrol engine is controlled by Governor Injector Fuel pump Carburettor TRUE ANSWER : ? YOUR ANSWER : ?
The octane number of petrol, generally available, is 80 to 100 60 to 80 40 to 60 20 to 40 TRUE ANSWER : ? YOUR ANSWER : ?
The fuel air ratio in a petrol engine fitted with suction carburettor, operating with dirty air filter as compared to clean filter will be Remain unaffected Lower None of the listed here Higher TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following fuel has little tendency towards detonation? Normal heptane Benzene Iso-octane Alcohol TRUE ANSWER : ? YOUR ANSWER : ?
A supercharged engine as compared to an ordinary engine All of these Is lighter Requires smaller foundation Consumes less lubricating oil TRUE ANSWER : ? YOUR ANSWER : ?