Fundamentals of Electrical Distribution

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This type of fault might occur in the electrical outlets located in the bathroom or in other areas where water could be present.

	Overload
	Short Circuits
	Ground Faults
	High Current

The selectively coordinated system is the most costly of the three basic systems of coordination.

	True
	False

At the electric distribution substation, electricity is removed from the transmission system and passed through step-down _____ that lower the voltage.

	Transformers
	Turbines
	Generators
	Cables

There are two types of AC power systems, _____ and _____.

	Single Phase, Three Phase
	Radial, Loop
	Fully Rated, Series Rated
	Alternating Current, Direct Current

An _____ condition left unchecked can cause insulation and/or equipment damage as a result of excessive temperature and/or dynamic stresses. Drag the correct answer into the box.

	Overcurrent
	Earth Fault
	Electrical
	Open Circuit

The goal of an electrical distribution system is the economical and _____ delivery of adequate electric power to electrical equipment.

	Convenient
	Low cost
	Timely
	Safe

Single-phase, three-wire has two hot wires and one neutral wire and can supply both 120V and 240V.

	True
	False

Power is equal to voltage times current (P = V * I) and the equation does not have to always be equal on both sides.

	True
	False

In a three-phase system, each phase is _____ degrees apart.

	100
	120
	150
	180

Alternating current (AC) is generated by utility companies and transmitted to homes and businesses.

	True
	False