NOCTI: Electrical Construction #3

What is the primary reason for locking out and tagging out circuits before working on them?

• To prevent accidental machine operation

• To improve the efficiency of the work

• To check the functionality of the circuit

• To increase the voltage in the circuit

Which of the following is NOT a recommended safety practice when working with electrical installations?

• Using insulated tools

• Wearing rubber gloves and boots

• Working on live circuits

• Keeping the work area dry

What is the purpose of using a conduit in electrical wiring?

• To enhance the aesthetic appearance of the installation

• To protect wires from mechanical damage

• To increase the current carrying capacity of the wire

• To reduce the cost of wiring

When installing a new electrical outlet, what is the first step?

• Connect the wires to the outlet

• Turn off the power to the circuit

• Cut the wires to the appropriate length

• Test the outlet with a voltage tester

Which tool is essential for troubleshooting a circuit that repeatedly blows fuses?

• Hammer

• Multimeter

• Screwdriver

• Pliers

What does it mean if a circuit breaker keeps tripping?

• The circuit is perfectly fine

• There is likely an overload in the circuit

• The circuit breaker is of high quality

• The electrical panel is outdated

According to the National Electrical Code (NEC), what is the minimum allowable wire size for most household circuits?

• 18-gauge

• 14-gauge

• 12-gauge

• 16-gauge

What must be done when a wiring installation does not comply with local electrical codes?

• It must be left as is

• It must be reported to the authorities

• It must be corrected to meet the standards

• It must be inspected more frequently

Why is it important to ensure all connections are tight during an installation?

• To prevent energy efficiency

• To reduce the risk of fire

• To increase the resistance in the circuit

• To make the installation look neat

What is the best practice for ensuring that an electrical panel is safe to work on?

• Check that all breakers are in the "on" position

• Ensure the panel is free of dust and debris

• Verify that the main breaker is turned off

• Label all circuits accurately