NABTEB QUESTIONS

State FOUR operational differences between the compression ignition and spark ignition. – NABTEB QUESTION

OPERATIONAL DIFFERENCES BETWEEN COMPRESSION IGNITION AND SPARK IGNITION ENGINE.

S/NO COMPRESSION IGNITION SPARK IGNITION
i Air only is drawn in during induction stroke. Air and fuel are drawn in during induction stroke.
ii Uses injection nozzles to spray atomized fuel for combustion Uses spark plug to ignite fire for combustion.
iii Fuel used is diesel Fuel used is petrol.
Iv Bigger and hollowed crown piston. Smaller and flat crown piston.
v Additional compression rings No additional rings.

 

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