Energy and Utilities Electricity Generation and Distribution

Question 1

What is the standard frequency of alternating current (AC) used in the US electrical grid?

Accepted Answer

60 Hz

Answer

50 Hz

Answer

120 Hz

Answer

25 Hz

Question 2

Which type of power plant produces electricity by splitting uranium atoms?

Accepted Answer

Nuclear fission

Answer

Hydroelectric

Answer

Geothermal

Answer

Combined cycle

Question 3

What does a transformer do in an electrical distribution system?

Accepted Answer

Changes voltage levels

Answer

Generates electricity

Answer

Stores electricity

Answer

Measures power consumption

Question 4

Which US federal agency regulates interstate electricity transmission?

Accepted Answer

FERC

Answer

EPA

Answer

DOE

Answer

NERC

Question 5

What is the typical voltage of electricity delivered to US residential customers?

Accepted Answer

120/240 volts

Answer

12 volts

Answer

480 volts

Answer

4,160 volts

Question 6

What is 'baseload' power in the context of electricity generation?

Accepted Answer

The minimum constant power supply needed at all times

Answer

Power used only during peak demand

Answer

Backup emergency power

Answer

Power stored in batteries