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A spark is produced to ignite a homogeneous air fuel mixture in the combustion chamber of an engine, it is called spark ignition system.
Which one of the statement is correct?
1. Petrol engine is a reciprocating engine
2. Petrol engine is high speed engine
3. Petrol engine uses petrol as fuel
4. Petrol engine is internal combustion engine
In an SI engine the first state of combustion takes 1 ms at 1000 rpm of the engine. The spark timing is set at 15°C btdc. What will be the new spark timing required if the engine speed is doubled?
Consider the following statements with regard to IC engines: 1. For best fuel economy of spark ignition engines, the fuel-air mixture should be lean 2. With supercharging, the specific consumption in compression ignition engines increases 3. With increase of load, knocking tendency in compression ignition engines increases Which of the above statements are correct?
Which of the following factors can control detonation in spark ignition engines? 1. Increasing engine rpm 2. Advancing spark timing 3. Making fuel-air ratio very rich
In a spark ignition engine combustion which is initiated between the spark plug electrodes spreads across the combustible mixture.
The ignition in a spark ignition engine takes place when the piston is
The auto ignition in a spark ignition engine means
When does ignition initiates in a Spark Ignition Engine?
In a SI engine, combustion stage I takes 1 ms and combustion stage II takes 1.5 ms when the engine runs at 1000 rpm. If stage I time duration is independent of engine speed what will be the additional spark advance necessary when the engine speed is doubled?