Multiple choice general knowledge science & technology

How many valve(s) does a 2 stroke engine has?

  1. 1

  2. 2

  3. 3

  4. None
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A Correct answer
Explanation

A 2-stroke engine has only one moving valve - the reed valve or rotary valve that controls fuel intake into the crankcase. Unlike 4-stroke engines with multiple valves (intake and exhaust), 2-strokes use ports in the cylinder wall for exhaust and transfer, controlled by piston position rather than separate valves.

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