Colorado Residential Wireman Exam Quiz

For a residential branch circuit rated 120 volts or less, protected by a GFCI rated at 20 amperes or less, what is the minimum cover requirement for direct-buried Type UF cable?

All 15- and 20-ampere, 125- and 250-volt nonlocking-type receptacles installed in a dwelling unit must have which of the following safety features?

What is the minimum required rating for the service disconnecting means for a standard one-family dwelling?

In a dwelling unit, which of the following areas is NOT explicitly required by the NEC to have Arc-Fault Circuit Interrupter (AFCI) protection for all 120-volt, 10-, 15-, and 20-ampere branch circuits?

When installing a surface-mounted incandescent luminaire in a clothes closet, what is the minimum required clearance between the luminaire and the nearest point of a storage space?

What is the minimum required burial depth for Rigid Metal Conduit (RMC) passing under a residential driveway?

In a dwelling unit, at least one wall switch-controlled lighting outlet must be installed in every habitable room, bathroom, and:

Nonmetallic-Sheathed Cable (Type NM) must be secured within what distance of a standard nonmetallic outlet box if the box does not contain integral cable clamps?

When checking the service equipment, you look for the Intersystem Bonding Termination (IBT) used to ground communication systems (like internet and cable). An IBT must have the capacity to connect at least how many intersystem bonding conductors?

A 200-ampere residential service is fed with 2/0 AWG copper ungrounded conductors. What is the minimum required size for the copper grounding electrode conductor (GEC) connected to a driven ground rod?

All services supplying dwelling units must be provided with which of the following to protect sensitive electronics?

What is the minimum free length of conductor that must be left at each outlet, junction, and switch point for splices or the connection of luminaires or devices?

What is the minimum required rating for a branch circuit that strictly supplies the receptacle outlets in a single dwelling unit bathroom?

For a single-family dwelling, the code requires at least one accessible receptacle outlet at the front and back of the dwelling. What is the maximum permitted height for these required receptacles above grade level?

At least one receptacle outlet must be installed in a dwelling unit hallway if the hallway, measured continuously along the floor line, is at least how long?

A grounded (neutral) conductor of 6 AWG or smaller must be identified along its entire length by a continuous white or gray outer finish, or by:

How many 20-ampere small-appliance branch circuits are required, at a minimum, to serve the receptacle outlets in a dwelling unit kitchen, pantry, dining room, and similar areas?

A receptacle is installed near a bathtub. The code dictates a restricted zone where receptacles are not permitted. What are the dimensions of this zone from the top of the bathtub rim?

In a dwelling unit kitchen, no point along the wall line of a countertop space can be more than how far from a receptacle outlet?

When inspecting a rough-in, you notice holes bored through wood framing members for Nonmetallic-Sheathed Cable (Type NM). The edge of the bored hole must be at least how far from the nearest edge of the wood member to avoid needing a steel nail plate?