Agricultural Mechanics EOPA 2025 – 400 Free Practice Questions to Pass the Exam

An engine that completes a power cycle in two strokes of the piston is known as a two-stroke cycle engine. This design allows for the completion of a power cycle with each revolution of the crankshaft, which is efficient for applications requiring high power-to-weight ratios, such as in chainsaws, dirt bikes, and certain types of lawn equipment. This engine type utilizes a more straightforward construction, often resulting in lighter weight and increased power output relative to its size compared to four-stroke engines.

The two-stroke cycle involves a unique process where the intake and compression of fuel-air mixture and the expansion and exhaust processes happen simultaneously. This design makes it considerably different from a four-stroke engine, which requires four separate strokes (intake, compression, power, and exhaust) to complete one cycle. Understanding this distinction helps in comprehending the operational mechanics of various internal combustion engine types and their applications in agricultural machinery and other uses.