In the Accompanying Figure, the Electrical Symbol at the Bottom

question 28

Multiple Choice

In the accompanying figure, the electrical symbol at the bottom stands for a ____.

• A) circuit breaker
• B) ground
• C) single-throw knife switch
• D) double-throw knife switch

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Definitions:

World's Population

The total number of living humans on Earth at a given time.

Fossil Fuels

Natural fuels such as coal, oil, and natural gas formed from the fossilized remains of ancient plants and animals.

Nuclear Power Plants

Facilities that generate electricity by using heat from nuclear reactions to produce steam which turns turbines.

Renewable Sources

Energy sources that are naturally replenished on a human timescale such as solar, wind, hydroelectric, and geothermal power.