Physics · Internal Combustion Engines
Which of the following statements is correct about engine valves?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The valve head is perfectly positioned at a 30-45 degree angle that fits ideally with the valve seat, creating a strong seal.✓
- 2Poppet or mushroom valves are commonly found in two-stroke engines due to their remarkable characteristics.
- 3The camshaft and its related parts control the ignition of the spark during engine ignition.
- 4Conical shaped valves control the flow of gases entering the engine.
Correct answer
The valve head is perfectly positioned at a 30-45 degree angle that fits ideally with the valve seat, creating a strong seal.
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