Deck 3: Electrical Circuits

Question 1

When an electric circuit is complete so that the current can flow, it is termed ____________________.

Answer 1

closed

Question 2

A series circuit is usually used for devices that are connected in the circuit for safety or control.

Answer 2

True

Question 3

A parallel circuit is designed to supply more than one load in the system.

Answer 3

True

Question 4

All electric circuits must have a complete path for electrons to flow through, a source of electrons, and some electric device (load) that requires electric energy for its operation.

Question 5

The total current draw of the entire parallel circuit cannot be determined.

Question 6

The ____________________ circuit allows only one path of current flow through the circuit.

Question 7

The voltage in a series circuit is the same for each device.

Question 8

Most electrical systems in equipment or control systems use either parallel or series circuits.

Question 9

The current draw in a parallel circuit is determined for each part of the circuit, depending on the resistance of that portion of the circuit.

Question 10

What is the formula for finding the total resistance in a series circuit?

Question 11

A(n) ____________________ is an electric circuit that controls some major load in the system.

Question 12

When the path of the current flow is interrupted, the circuit is termed ____________________ or broken.

Question 13

A(n) ____________________ circuit is a combination circuit made up of series and parallel circuits and is used only sparingly in the industry.

Question 14

What is the formula for finding the total resistance of a parallel circuit with two resistances?

Question 15

An electric circuit is the complete path of an electric current, along with any necessary elements such as a power source and a load.

Question 16

The most common device supplied with energy is an electric motor.

Question 17

How are the switches in electrical circuits that control parallel loads connected? If the switch opens, what happens to the circuit?

Question 18

The parallel circuit has only one path for the electron flow.

Question 19

What is the most common source of the electric energy used in the electric circuits of a heating, cooling, or refrigeration system?

Question 20

How are the electrical loads that require electrical power for operation usually connected? Why?