An Automobile Engine Having a Compression Ratio of ____ Means

question 9

Multiple Choice

An automobile engine having a compression ratio of ____ means that the gasoline-air mixture was compressed to one-tenth of its original volume before it was ignited.

• A) 2
• B) 4
• C) 8
• D) 10
• E) None of the above.

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Definitions:

Sphincters

Circular muscles that control the passage of substances through the openings of the body.

Dentin

A calcified tissue that lies beneath the enamel and cementum of teeth, providing structure and sheltering the pulp.

Enamel

The hard, outermost layer of a tooth that protects it from decay.

Liver

A vital organ in the body responsible for processing nutrients from food, detoxifying harmful substances, and producing bile for digestion.