Podcast
Questions and Answers
What are bus bars?
What are bus bars?
- Conductors with insulation
- Small conductors in circular cross section
- Large non-circular conductors found in main switchboards (correct)
- Large circular conductors
Which of the following is a function of insulators?
Which of the following is a function of insulators?
- Enclose wires and cables
- Increase conductivity
- Prevent the flow of electrons (correct)
- Enhance electron flow
What do conduits primarily enclose?
What do conduits primarily enclose?
- Cabling accessories
- Wires and cables (correct)
- Bus bars
- Insulated conductors
What type of outlet is intended for direct connection to a lighting fixture?
What type of outlet is intended for direct connection to a lighting fixture?
In the context described, what do switches primarily do?
In the context described, what do switches primarily do?
What is the primary function of a service switch according to the text?
What is the primary function of a service switch according to the text?
What type of switches are used when it is desired to control lamps from two different points, such as in a stairwell?
What type of switches are used when it is desired to control lamps from two different points, such as in a stairwell?
Which protective device consists of an alloy link of wire with a low melting temperature inserted in the circuit?
Which protective device consists of an alloy link of wire with a low melting temperature inserted in the circuit?
What type of protective device provides ground fault protection and also functions as an ordinary circuit breaker?
What type of protective device provides ground fault protection and also functions as an ordinary circuit breaker?
Where are the protective devices housed in interior wiring installations?
Where are the protective devices housed in interior wiring installations?
Which type of switches are used with two 3-wire switches to control lamps from three or more desired points?
Which type of switches are used with two 3-wire switches to control lamps from three or more desired points?
What is the function of switchboards in interior wiring installations?
What is the function of switchboards in interior wiring installations?
What is the purpose of a branch circuit?
What is the purpose of a branch circuit?
Where do feeder circuits extend from and to?
Where do feeder circuits extend from and to?
What is the function of sub feeder circuits?
What is the function of sub feeder circuits?
What is the role of a distribution panel?
What is the role of a distribution panel?
Where does low voltage alternating current below 50 volts come from in residential systems?
Where does low voltage alternating current below 50 volts come from in residential systems?
What is the point of delivery of electricity to a building by a public utility company called?
What is the point of delivery of electricity to a building by a public utility company called?
