Module 1-10: Basic Electrical Concepts

Electricity is the flow of __ in a conductor.

• Electrons

• Protons

• Neutrons

• Photons

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

• Switch

• Resistor

• Capacitor

• Transformer

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 above

Which of the following is an electrical output device?

• Motor

• Lamp

• Resistor

• All of the above

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

• Loads

• Temperatures

• Frequencies

• Voltages

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

• Contacts

• Springs

• Wires

• Fuses

Which of the following is a manually-operated switch?

• Pushbutton switch

• Selector switch

• Knife switch

• All of the above

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

• Resistor

• Capacitor

• Inductor

• Insulator

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

• Normally open

• Normally closed

• Double throw

• Momentary

A(n) __ determines if electricity is present in a circuit.

• Circuit tester

• Wire stripper

• Screwdriver

• Pliers