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ICAR PG Dairy Technology 29 Jun 2024Shift 1
Arranging Order +4 −1

Given below are the strokes of a 4-stroke S.I. engine. Arrange them in their correct sequence:

(A) Suction of fresh charge
(B) Compression of fresh charge
(C) Expansion of high pressure burnt gases
(D) Exhaust of burnt fuel i.e. smoke

Choose the correct answer from the options given below:

4-स्ट्रोक एस.आई. (Spark Ignition) इंजन के स्ट्रोक नीचे दिए गए हैं। उन्हें उनके सही क्रम में व्यवस्थित करें:

The standard four strokes of a four-stroke internal combustion engine occur in the following sequence:

  • Suction stroke (A): Fresh air-fuel mixture is drawn into the cylinder.
  • Compression stroke (B): The charge is compressed by the piston moving to TDC.
  • Expansion/Power stroke (C): Spark ignites mixture, burning gases expand and drive piston down.
  • Exhaust stroke (D): Burnt gases/smoke are expelled through the exhaust valve.
अतः सही क्रम A, B, C, D है।
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