Electrical Wires and Cables Quiz

What is the most common type of wiring in modern homes?

• Metallic cable

• Nonmetallic cable

• Conduit

• Fiber optic cable

What is the main difference between wire and cable?

• Wire is visible, while cable is usually insulated

• Wire is used for power transmission, while cable is used for telecommunications signals

• Wire is a single conductor, while cable is made of two or more conductors

• Wire is always insulated, while cable is usually uninsulated

What is the main advantage of solid wire over stranded wire?

• Low resistance

• Heavy duty

• Insulated

• Higher strength

What is the purpose of a twisted pair cable?

• To bear mechanical loads

• To send audio

• To carry data

• To carry electricity and telecommunications signals

What is the color of a wire used for switch legs?

• Yellow

• Blue

• Black

• Red

What is the main insulation type represented by the letter 'W' in wire lettering?

• Heat resistance

• Nylon coating

• High heat resistance

• Suitable for wet locations

What is the most common type of household data wiring?

• Category 5 cable

• Coaxial cable

• Multi conductor cable

• Fiber optic cable

What is the main use of UF cable?

• Supplying outdoor fixtures

• Used inside conduit

• Direct burial in the ground

• Interior use in dry locations

What is the material usually used to make electrical wire?

• Copper

• Aluminum

• Plastic

• Steel

What is the main purpose of conduit in electrical wiring?

• To protect and route electrical wiring

• To provide insulation

• To bear mechanical loads

• To carry electricity and telecommunications signals