General Studies · IC Engines
Which of the following statements is correct regarding engine valves in an internal combustion engine?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Valves with their conical shapes control the flow of electrical current to regulate the entry of gases.
- 2The valve head is typically ground to an angle of 30 to 45 degrees to match the valve seat and create a tight seal.✓
- 3Poppet or mushroom valves are the most common type of valves found in modern two-stroke petrol engines.
- 4The camshaft and its associated parts control the ignition spark flame inside the engine.
Correct answer
The valve head is typically ground to an angle of 30 to 45 degrees to match the valve seat and create a tight seal.
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