General Studies · Internal Combustion Engines
Which of the following statements is INCORRECT regarding the operational strokes of a standard four-stroke Compression Ignition (C.I.) diesel engine?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The operational cycle in both four-stroke petrol and diesel engines consists of suction, compression, combustion/expansion, and exhaust.
- 2In C.I. engines, only pure air is drawn into the cylinder during the suction stroke, and fuel is injected near the end of the compression stroke.
- 3The basic thermodynamic sequence of four-stroke C.I. engines is practically analogous to that of standard S.I. engines.
- 4In C.I. engines, a premixed air-fuel mixture is sucked into the cylinder during the induction stroke.✓
Correct answer
In C.I. engines, a premixed air-fuel mixture is sucked into the cylinder during the induction stroke.
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