Physics · Thermal Engineering
Which of the following statements is true about a four-stroke engine in comparison to a two-stroke engine?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A four-stroke engine only uses the diesel cycle, while a two-stroke engine only uses the Otto cycle.
- 2Owing to one power stroke in two revolutions, a lighter flywheel is required.
- 3Volumetric efficiency of a four-stroke engine is comparatively low, due to less power output.
- 4Thermal efficiency and part-load efficiency of a four-stroke engine are better than those of a two-stroke engine.✓
Correct answer
Thermal efficiency and part-load efficiency of a four-stroke engine are better than those of a two-stroke engine.
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