SSC JE Mechanical 11 Oct 2023 Shift 2 Paper

Question : 171 of 200

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Which of the following statements is true about a four-stroke engine in comparison to a two-stroke engine?

Thermal efficiency and part-load efficiency of a four-stroke engine are better than those of a two-stroke engine.
Volumetric efficiency of a four-stroke engine is comparatively low, due to less power output.
Owing to one power stroke in two revolutions, a lighter flywheel is required.
A four-stroke engine only uses the diesel cycle, while a two-stroke engine only uses the Otto cycle.

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