When Are Exhaust Valves Exposed to the Most Heat

question 18

Multiple Choice

When are exhaust valves exposed to the most heat?

• A) When closed at the end of the power stroke.
• B) When opened at the end of the power stroke.
• C) Immediately after the engine is shut off.
• D) During the exhaust stroke.

---

Definitions:

Adam Smith

A Scottish economist, philosopher, and author known for his theories on free market economics presented in his book "The Wealth of Nations."

Invisible Hand

A metaphor introduced by economist Adam Smith to describe the self-regulating behavior of the marketplace, where individuals acting in their own self-interest inadvertently benefit society at large.

Petty Bourgeoisie

Class of small business owners and employees who own some means of production but do not exploit large labor forces, often seen as part of the middle class.

Middle Class

A social group between the upper and working classes, including professionals, business people, and others with a moderate to high standard of living.