General Studies · IC Engines
Match the given stages of the valve timing diagram for a standard four-stroke petrol engine with their respective approximate design positions: Column A (Stages) A. Exhaust valve opens B. Exhaust valve closes C. Inlet valve opens Column B (Positions)1. 10°-20° before top dead centre2. 30°-50° before bottom dead centre3. 10°-15° after top dead centre
- 1A-1; B-3; C-2
- 2A-2; B-1; C-3
- 3A-2; B-3; C-1✓
- 4A-3; B-1; C-2
Correct answer
A-2; B-3; C-1
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