Types of Internal Combustion Engine Valves

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

To decrease the clearance volume (correct)

To increase the compression ratios

To increase the lubrication percentage

To enhance the fuel combustion process

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

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