In a typical medium speed, 4-stroke cycle diesel engine Fuel injection starts at top dead center and ends at 20° after top dead center Fuel injection starts at 10° before top dead center and ends at 20° after top dead center Fuel injection starts at just before top dead center and ends just after top dead center May start and end anywhere TRUE ANSWER : ? YOUR ANSWER : ?
In a four stroke cycle petrol engine, the compression Starts at 40° after bottom dead centre and ends at 30° before top dead centre May start and end anywhere Starts at bottom dead centre and ends at top dead centre Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre TRUE ANSWER : ? YOUR ANSWER : ?
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of 500°C 2000°C 1000°C 250°C TRUE ANSWER : ? YOUR ANSWER : ?
The self ignition temperature of petrol is _________ as compared to diesel oil. Same Lower Higher None of these TRUE ANSWER : ? YOUR ANSWER : ?
A stoichiometric air-fuel ratio is Chemically correct mixture Rich mixture for over loads Lean mixture Rich mixture for idling TRUE ANSWER : ? YOUR ANSWER : ?
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure. Below Above None of these Equal to 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 Detonation Supercharging Polymerisation Scavenging TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following fuel has little tendency towards detonation? Normal heptane Alcohol Iso-octane Benzene TRUE ANSWER : ? YOUR ANSWER : ?
The ignition of the charge by some hot surface within the engine before the passage of spark is called Pre-ignition Ignition delay Auto-ignition Detonation TRUE ANSWER : ? YOUR ANSWER : ?