The Otto cycle consists of the following four processes____________________?
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Answer: B. two isentropics and two constant volumes
Explanation
The ideal Otto cycle models spark ignition internal combustion engine operations. Compression and expansion strokes occur adiabatically without heat exchange. Heat addition and rejection happen instantaneously at constant volume conditions. Nicolaus Otto invented the four stroke thermodynamic cycle widely used today. Isochoric processes occur when piston movement is momentarily halted at dead centers. Isentropic processes represent ideal reversible compression and expansion steps.
Automotive engineers use the Otto cycle to analyze gasoline engine efficiency. Compression ratios in modern cars are designed based on Otto cycle principles. Performance curves of passenger vehicles rely on these theoretical foundations. Option A describes an isothermal Stirling type cycle rather than an Otto cycle. Option C describes a dual combustion cycle rather than a standard Otto cycle. Option D describes a Diesel cycle utilizing constant pressure heat addition.
- Subject
- Engineering
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- Mechanical Engineering
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- —
- Difficulty
- medium
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