In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as Scavenging Polymerisation Detonation Supercharging TRUE ANSWER : ? YOUR ANSWER : ?
The octane number of petrol, generally available, is 60 to 80 80 to 100 40 to 60 20 to 40 TRUE ANSWER : ? YOUR ANSWER : ?
In a four stroke cycle petrol engine, the expansion Starts at 30° before top dead center and ends at 50° before bottom dead center Starts at top dead center and ends at bottom dead center Starts at 30° after top dead center and ends at 50° after bottom dead center May start and end anywhere TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called Efficiency ratio Net efficiency Overall efficiency Relative efficiency TRUE ANSWER : ? YOUR ANSWER : ?
A petrol engine, during suction stroke draws A mixture of petrol and air Petrol only None of these Air only TRUE ANSWER : ? YOUR ANSWER : ?
The thermal efficiency of a standard Otto cycle for a compression ratio of 5.5 will be 0.25 1 0.5 0.7 TRUE ANSWER : ? YOUR ANSWER : ?
The voltage required to produce a spark across the gap, between the sparking points is 6000 to 10,000 volts 2000 to 4000 volts 4000 to 6000 volts 10,000 to 12,000 volts TRUE ANSWER : ? YOUR ANSWER : ?
A 75 cc engine has following parameter as 75 cc Fuel tank capacity Swept volume Lube oil capacity Cylinder volume TRUE ANSWER : ? YOUR ANSWER : ?
The expansion of fuel in a four stroke cycle diesel engine Starts at 15° before top dead center and ends at 30° after top dead center Starts at 15° after top dead center and ends at 30° before bottom dead center May start and end anywhere Starts at top dead center and ends at 30° after top dead center TRUE ANSWER : ? YOUR ANSWER : ?
The following volume of air is required for consuming 1 liter of fuel by a four stroke engine 5 m3 1 m3 910 m3 56 m3 TRUE ANSWER : ? YOUR ANSWER : ?