Define two stroke and four stroke engine.

Question

Accepted Answer

Two stroke engine completes a power cycle in one revolution of the crankshaft while four stroke engine completes it in two revolutions.

Two stroke engine has no valves and uses ports to let in air and fuel mixture and expel exhaust gases.
Four stroke engine has separate intake, compression, power, and exhaust strokes.
Two stroke engine is simpler and lighter but less efficient and more polluting than four stroke engine.
Examples of two stroke engines are chainsaws, mopeds, and outboard motors while examples of four stroke engines are cars, trucks, and motorcycles.

Accepted Answer

Two stroke engine has no valves and uses ports to let in air and fuel mixture and expel exhaust gases.

Four stroke engine has separate intake, compression, power, and exhaust strokes.

Two stroke engine is simpler and lighter but less efficient and more polluting than four stroke engine.

Examples of two stroke engines are chainsaws, mopeds, and outboard motors while examples of four stroke engines are cars, trucks, and motorcycles.

Accepted Answer

Two stroke engine completes a power cycle in one revolution of the crankshaft while four stroke engine completes it in two revolutions.
Two stroke engine has no valves and uses ports to let in air and fuel mixture and expel exhaust gases.

Four stroke engine has separate intake, compression, power, and exhaust strokes.

Two stroke engine is simpler and lighter but less efficient and more polluting than four stroke engine.

Examples of two stroke engines are chainsaws, mopeds, and outboard motors while examples of four stroke engines are cars, trucks, and motorcycles.

Define two stroke and four stroke engine.

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