1301 M2 Review

A power grid is a network of major electrical conductors that link individual utility companies together.

• True

• False

Which of the following is not a true statement about a power grid?

• It helps ensure a continuous flow of power to customers.

• It allows companies to buy and sell power to each other.

• It provides power to individual companies when needed.

• It always extends across a continent.

A transmission and distribution system carries electricity from:

• 
   transformers to power plants.

• substations to the public.

• power plants to customers.

• distribution lines to transmission lines.

______________________ is the amount of electricity flowing through a line at a given time.

• Resistance

• Current

• Ohms

• Impedance

Load refers to all the devices in an electrical circuit that consume electricity.

• True

• False

Distribution lines carry power from substations to urban and rural areas, where voltage is reduced before the power is delivered to customers.

• True

• False

In rural areas, customers may receive power directly from a transformer through a service drop.

• True

• False

Identify the classification of voltage supplied by each of the following distribution lines.

 P for primary voltage or S for secondary voltage.

Primary Feeder

• P

• S

Identify the classification of voltage supplied by each of the following distribution lines.

 P for primary voltage or S for secondary voltage.

Lateral

• P

• S

Identify the classification of voltage supplied by each of the following distribution lines.

 P for primary voltage or S for secondary voltage.

Service drop

• P

• S