# In a typical medium speed 4 stroke cycle diesel engine _____ ? with Answer - Mechanical Engineering Mcqs | TestPrep

> Solved MCQ: In a typical medium speed 4 stroke cycle diesel engine _____ ? Correct Answer: A. exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# In a typical medium speed 4 stroke cycle diesel engine _____ ?

Direct Answer & Quick Reference

The correct option is **A. exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center**.

A. exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center **(Correct Answer)**

B. exhaust valve opens at bottom ‘dead center and closes at top dead center

C. exhaust valve opens just after bottom dead center and closes just before top dead center

D. may open and close anywhere

E. none of the above is true

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Verified Key: A. exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center
Solved by 2,002+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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*Source: https://test-prep.blog/mcq/in-a-typical-medium-speed-4-stroke-cycle-diesel-engine-e936de24-18d2-4213-a0a6-1d8a2acee758*
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