Week 2

Question 1

What is “RMS”?

Answer 1

RMS is a value of AC voltage that produces an effective amount of power, like DC

Question 2

What are the three types of load that an AC circuit can experience?

Answer 2

Resistive
Inductive
Capacitive

Question 3

How do you calculate instantaneous voltage?

Answer 3

Multiply the maximum or peak voltage times the sine of the angle

Question 4

What is the unit of measure for frequency?

Answer 4

Hertz

Question 5

What three things affect the strength of voltage?

Answer 5

The number of turns in the coil of wire
The strength of the magnetic field
The speed at which the magnetic lines of flux pass through the coil

Question 6

What can be said about the voltage value when the generator is at 90 degrees?

Answer 6

The voltage is at its peak positive value

Question 7

Which generation method uses a “nacelle”?

Answer 7

Wind

Question 8

What does the law of charges say?

Answer 8

Opposite charges attract and like charges repel

Question 9

What four methods are common for producing high pressure steam for producing electrical energy?

Answer 9

Fossil-fired
Nuclear-fired
Geothermal
Solar

Question 10

What is meant by combined cycle?

Answer 10

Natural gas is used for a combustion turbine, and the hot exhaust superheats water to produce steam, which turns a steam turbine