On modern four stroke engines the exhaust valve opens just(a) Before TDC(b) After TDC(c) Before BDC(d) After BDCI have been asked this question by my school teacher while I was bunking the class.I need to ask this question from Engine Valves and their Mechanisms topic in section Internal Combustion Engines of Automobile Engineering

On modern four stroke engines the exhaust valve opens just(a) Before T

1.	On modern four stroke engines the exhaust valve opens just(a) Before TDC(b) After TDC(c) Before BDC(d) After BDCI have been asked this question by my school teacher while I was bunking the class.I need to ask this question from Engine Valves and their Mechanisms topic in section Internal Combustion Engines of Automobile Engineering
Answer» The correct CHOICE is (c) Before BDC Easiest explanation: Exhaust valve OPENS before the PISTON reaches BOTTOM Dead Centre.

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