Understanding NEC Electrical Standards

According to the NEC color code standards, what color is typically used for the grounding conductor in electrical wiring?

• Red

• Green

• Blue

• Black

Which of the following types of switches is commonly used to control a light from two different locations?

• Single-pole switch

• Double-pole switch

• Three-way switch

• Four-way switch

In a standard 120-volt receptacle wiring configuration, which wire is typically connected to the brass-colored terminal?

• Neutral wire

• Ground wire

• Hot wire

• None of the above

What is the typical ampacity of a 12-gauge copper conductor according to the NEC?

• 15 amps

• 20 amps

• 25 amps

• 30 amps

Which color is typically used for the neutral conductor in a 120/240-volt system according to NEC standards?

• Black

• White

• Red

• Green

What type of switch would you use to control a light from three or more locations?

• Single-pole switch

• Double-pole switch

• Three-way switch

• Four-way switch

In a receptacle wiring configuration, which wire is typically connected to the silver-colored terminal?

• Hot wire

• Neutral wire

• Ground wire

• None of the above

What is the color code for a 277/480-volt system's phase B conductor according to the NEC?

• Black

• Red

• Blue

• Orange

Which type of switch is used to control a device from a single location?

• Single-pole switch

• Double-pole switch

• Three-way switch

• Four-way switch

In a 240-volt receptacle wiring configuration, which wire is typically connected to the green-colored terminal?

• Hot wire

• Neutral wire

• Ground wire

• None of the above