Journeyman Electrician’s Exam Journeyman Electrician's Swimming Pools and Spas 3

Question 1

Per NEC 680.51(A), electrical equipment in a decorative fountain that operates at more than 15 volts and contacts water must have what protection?

Accepted Answer

Ground-fault circuit interrupter (GFCI) protection

Answer

An isolation transformer

Answer

Arc-fault circuit interrupter (AFCI) protection

Answer

Double-insulated wiring methods only

Question 2

Per NEC 680.23(A)(1) and (A)(6), a replacement underwater pool luminaire must be:

Accepted Answer

Listed for use as a swimming pool luminaire and the installation must be watertight

Answer

Rated for 15 volts maximum and installed in the pool floor only

Answer

Any standard outdoor wet-location fixture rated for the circuit voltage

Answer

Replaced only with an identical model from the original manufacturer

Question 3

Per NEC 680.42(A), the branch circuit wiring to an outdoor permanently installed spa or hot tub must use which wiring method?

Accepted Answer

Rigid metal conduit, IMC, or liquidtight flexible nonmetallic conduit

Answer

Type NM-B cable (Romex)

Answer

Type UF (underground feeder) cable

Answer

Type SE (service entrance) aluminum cable

Question 4

For an indoor spa or hot tub installation, per NEC 680.43(A)(2), GFCI protection is required for all receptacles within what distance of the inside walls?

Accepted Answer

10 feet

Answer

5 feet

Answer

6 feet

Answer

20 feet

Question 5

What is the primary purpose of the equipotential bonding grid required by NEC 680.26 around swimming pools?

Accepted Answer

To keep all metal parts at the same electrical potential, preventing electric shock

Answer

To provide a return path for fault current back to the overcurrent device

Answer

To serve as the grounding electrode for the pool electrical system

Answer

To reduce impedance in the equipment grounding path only

Question 6

Per NEC 680.12, the disconnecting means for pool or spa equipment must be located within sight of the equipment and within what maximum distance from it?

Accepted Answer

50 feet

Answer

10 feet

Answer

25 feet

Answer

100 feet

Question 7

Per NEC 680.22(A)(4), all 125V, 15 and 20 ampere receptacles located within 20 feet of the inside walls of a permanently installed pool must be:

Accepted Answer

GFCI protected

Answer

Tamper-resistant and weatherproof rated only

Answer

On a dedicated branch circuit

Answer

Locking-type receptacles rated for wet locations