Question

In Wankel engines, how many power strokes occur per rotor revolution?

(a) 1

(b) 2

(c) 3

(d) 4

The question was posed to me by my school principal while I was bunking the class.

This key question is from Applications of IC Engines in division Internal Combustion Engines of Automobile Engineering

Answer 1

Right option is (c) 3

To explain: Wankel is a type of IC engine which has an eccentric rotor design.  For one rotor revolution, there are three power strokes in a Wankel engine. This engine converts pressure into rotating motion.