1 - Basic Electrical Circuits

Electricity is the flow of __________ in a conductor.

• Protons

• Neturons

• Electrons

• Photons

Alternating current is one type of electrical current; what is the other type?

• In-Rush Current

• River Current

• Direct Current

• Unaltered Current

The electrical wall outlets at home are a source of __________ current.

• Ohmmeter

• Alternating Current

• Ammeter

• Solenoid

Which of the following is not a component of a basic electrical circuit?

• input device

• output device

• insulator

• power supply

Constant voltage power supplies will maintain a constant voltage output under varying __________.

• loads

• weather conditions

• levels of light

• chemical reactions

Which of the following is true of an electrical schematic diagram?

• Represents components with standard symbols.

• Shows how the components are interconnected.

• Is helpful in troubleshooting a circuit.

• All of the answers.

A simple method for opening or closing a circuit is to use a __________.

• switch

• knife

• screwdriver

• none

The contacts of a(n) __________ switch are open until acted on by the operator.

• normally closed

• adjacent

• normally open

• normally simulated

Which of the following is a manually operated switch?

• pushbutton switch

• selector switch

• knife switch

• all of them.

A knife switch consists of a lever and one or more sets of __________.

• conductors

• operators

• kinves

• contacts