Question

For the same output, two stroke engines occupy ___________ space.

(a) greater

(b) lesser

(c) same

(d) none of the mentioned

The question was asked in semester exam.

Question is taken from Advantages of Two Stroke Engines in chapter Two Stroke Engines of IC Engine

Answer 1

The correct answer is:

(b) lesser

For the same output, two-stroke engines occupy lesser space compared to four-stroke engines. This is because two-stroke engines complete a power cycle in two strokes (one crankshaft revolution), while four-stroke engines require four strokes (two crankshaft revolutions). As a result, two-stroke engines are generally more compact, making them suitable for applications where space is limited, such as in small engines for motorcycles, lawnmowers, and certain types of vehicles.