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Mechanical Engineering · Q45

Internal Combustion Engines (I.C. Engines)

Engineering and GATE · Mechanical Engineering · question 45

Q45

In a four stroke cycle petrol engine, the compression

A.
Starts at 40° after bottom dead centre and ends at 30° before top dead centre
Answer
B.
Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre
C.
Starts at bottom dead centre and ends at top dead centre
D.
May start and end anywhere

Answer: Option A

Solution

Answer: Option A
Solution:
In a four stroke cycle petrol engine, the compression Starts at 40° after bottom dead centre and ends at 30° before top dead centre