Understanding Electrical Wiring Basics

What is the most common type of electrical outlet used in homes in North America?

• Type C

• Type A

• Type B

• Type F

Which wire is typically connected to the brass-colored screw on a single-pole switch?

• Neutral wire

• Ground wire

• Hot wire

• None of the above

What is the purpose of grounding an electrical outlet?

• To increase voltage

• To prevent electrical shock

• To reduce current

• To save energy

Which of the following is a safety precaution to take when wiring an electrical outlet?

• Work with wet hands

• Use insulated tools

• Stand on a metal ladder

• Ignore the circuit breaker

What color is typically used for the ground wire in electrical wiring?

• Red

• Black

• Green or bare

• White

When wiring a single switch, which wire is connected to the silver screw?

• Hot wire

• Neutral wire

• Ground wire

• None of the above

Which type of outlet is designed to protect against electrical shock in wet areas?

• GFCI outlet

• Standard outlet

• USB outlet

• Smart outlet

What should you do before starting any electrical wiring work?

• Turn off the power at the circuit breaker

• Test the outlet with a multimeter

• Wear rubber gloves

• All of the above

Which of the following is NOT a type of electrical outlet?

• Duplex outlet

• Triplex outlet

• GFCI outlet

• USB outlet

What is the function of a GFCI outlet?

• To provide more power

• To prevent circuit overload

• To detect ground faults and interrupt the circuit

• To increase the lifespan of appliances