Question

How can a two-stroke engine identify by?

(a) Piston size

(b) Absence of valves

(c) Cooling system

(d) Lubrication system

This question was addressed to me by my college professor while I was bunking the class.

This is a very interesting question from 2 Stroke Engines topic in chapter Internal Combustion Engines of Automobile Engineering

Answer 1

Right answer is (b) Absence of valves

The best explanation: The two-stroke engine is identified by the absence of valves. Almost all two-stroke engines do not have valves. This makes the two-stroke engine easy to produce and maintain.