SI and CI engine

Question

SI and CI engine

Accepted Answer

SI and CI engines are two types of internal combustion engines used in vehicles and machinery.

SI (Spark Ignition) engines use a spark plug to ignite the fuel-air mixture, while CI (Compression Ignition) engines use compression to ignite the fuel.
SI engines are commonly used in gasoline-powered vehicles, while CI engines are used in diesel-powered vehicles and heavy machinery.
SI engines have a higher power output at high RPMs, while CI engines have a higher torque output at low RPMs.
SI engines are generally more fuel-efficient, while CI engines are more durable and have a longer lifespan.
Examples of SI engines include gasoline-powered cars and motorcycles, while examples of CI engines include diesel-powered trucks and tractors.

Accepted Answer

Si engine It is an engine in which the spark is used to burn the fuel.

Cl engine It is an engine in which heat of compressed air is used to burn the fuel.

Top Maruti Suzuki Graduate Engineer Trainee (Get) interview questions & answers