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Exam 15: Special Residential Wiring Situations

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Question 1

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For a permanently installed swimming pool, any 15 or 20 amp, 125 through 250 volt rated receptacle located within __________ feet of a pool's inside wall must be GFCI protected.

A) 3
B) 10
C) 12
D) 20

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Question 2

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Describe a multiwire branch circuit.

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a branch circuit that consists of two or more ungrounded conductors that have a voltage between them and a grounded conductor that has an equal voltage between it and each ungrounded conductor

Question 3

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The most important installation practice for a permanently installed swimming pool is the proper grounding and bonding together of all ____________________ parts in and around the pool.

A permanently installed swimming pool must have at least one 125-volt, 15- or 20-amp receptacle located a minimum of __________ feet from the inside wall of the pool.

Lighting fixture assemblies for storage pools are permitted as long as the lamp operates at no more than __________ volts.

If a conductor or cable has a(n) ____________________ in their insulation designation, such as THWN, it means that it is suitable for installation in a wet location.

When bonding the various metal parts of a permanently installed swimming pool, all bonding wires must be solid copper and be ____ AWG or larger.

A light-sensing device used to control lighting fixtures in response to detected light levels is called a _________.

The conductors that provide power to pool lighting fixtures must be GFCI protected if the voltage is above __________ volts.

The minimum burial depth for type UF cable can be found in Table __________ of the NEC.

A GFCI receptacle is an acceptable means to provide the required GFCI protection to a hydromassage bathtub.

Outdoor lighting can be mounted on trees.

If the feeder supplying power to a detached garage is installed with an equipment grounding conductor, the NEC does not require a separate grounding electrode system to be established.

According to the NEC, the minimum burial depth for a direct buried cable like Type UF is __________ inches.(General Rule)

If a lighting fixture is installed under a canopy or under an open porch, it is considered to be in a(n) ____________________ location.

PVC conduit is not permitted as the only means of support for a junction box used with underwater lighting when wiring permanently installed swimming pools.

Pool motors can be cord and plug connected but if they are, the cord can't be more than __________ feet long and must contain an equipment grounding conductor sized according to Table 250.122.

Overhead conductor spans are permitted to be supported by trees.

A(n) ____________________ switch eliminates the possibility of a generator voltage being applied to the secondary of the utility's supply transformer.

Assuming a 20 amp circuit breaker and GFCI protection, the minimum burial depth for a Type UF cable running to a 120 volt pole light at a residence is __________ inches.