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Questions and Answers
In a four-stroke cycle engine, how many valves must each cylinder have?
In a four-stroke cycle engine, how many valves must each cylinder have?
- One intake and one exhaust valve (correct)
- Two intake and one exhaust valve
- One intake and two exhaust valves
- Two intake and two exhaust valves
What is the reason for shifting to overhead multiple valve engines?
What is the reason for shifting to overhead multiple valve engines?
- To decrease the clearance volume (correct)
- To increase the compression ratios
- To increase the lubrication percentage
- To enhance the fuel combustion process
What is a significant difference between overhead valve engines and overhead camshaft engines?
What is a significant difference between overhead valve engines and overhead camshaft engines?
- Overhead valve engines have bigger cylinder heads
- Overhead camshaft engines have smaller clearance volumes (correct)
- Overhead valve engines have higher lubrication percentages
- Overhead camshaft engines require additional space for overhead cams
What feature contributes to the high temperature resistance of the valves in the engines?
What feature contributes to the high temperature resistance of the valves in the engines?
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