A spark plug gap is kept from 0.4 to 0.9 mm 0.6 to 1.0 mm 0.3 to 0.7 mm 0.2 to 0.8 mm TRUE ANSWER : ? YOUR ANSWER : ?
Gaseous fuel guarantees are based on Calorific value of oil Mean heat value of oil Low heat value of oil High heat value of oil TRUE ANSWER : ? YOUR ANSWER : ?
Number of working strokes per min. for a four stroke cycle engine are _________ the speed of the engine in r.p.m. Four-times Twice Equal to One-half TRUE ANSWER : ? YOUR ANSWER : ?
In a cycle, the spark lasts roughly for 0.01 sec 0.001 sec 1 sec 0.1 sec TRUE ANSWER : ? YOUR ANSWER : ?
If the compression ratio in I.C. engine increases, then its thermal efficiency will Increase Remain same None of these Decrease TRUE ANSWER : ? YOUR ANSWER : ?
The air standard efficiency of an I.C. engine depends on Fuel used None of these Speed of engine Compression ratio TRUE ANSWER : ? YOUR ANSWER : ?
High speed compression engines operate on Otto cycle Dual combustion cycle All of these Diesel cycle TRUE ANSWER : ? YOUR ANSWER : ?
Diesel fuel, compared to petrol is More difficult to ignite Just about the same difficult to ignite Less difficult to ignite Highly ignitable TRUE ANSWER : ? YOUR ANSWER : ?
Pick up the wrong statement about supercharging There can be limited supercharging in petrol engines because of detonation Supercharging at high altitudes is essential Supercharging results in fuel economy Supercharging reduces knocking in diesel engines TRUE ANSWER : ? YOUR ANSWER : ?