Deck 30: Swimming Pools, Spas, Hot Tubs, and Hydromassage Baths

Question 1

We are permitted to use a flexible cord-and-plug connection for fixed or stationary equipment associated with a permanently installed pool. Underwater luminaires are included in this permission.

Answer 1

False

Question 2

Components that must be bonded include ____.

A) metal fittings
B) conductive pool shells
C) perimeter surfaces within 3 ft (1 m)
D) all of the above

Answer 2

D

Question 3

Once you run conductors beyond (on the load side of) a GFCI device protecting that wiring, you are not permitted to have other conductors in the same raceway, box, or enclosure. Give two exceptions to this rule.

Answer 3

The other conductors are protected by GFCIs. The other conductors are equipment grounding conductors. The other conductors are supply conductors to a feed-through type GFCI. The GFCI is installed in a panelboard, where obviously there will be a "mix" of other circuit conductors that are not GFCI protected.

Question 4

UL Standard 1563 establishes the maximum water temperature at 104 degrees F, and the suggested maximum time of immersion is generally ____________________ minutes.

Question 5

Underground wiring is not permitted under pools or within ____ horizontally from the inside walls of a pool.

A) 10 ft (3 m)
B) 15 ft (4.5 mn)
C) 5 ft (1.5 m)
D) 6 ft (1.8 m)

Question 6

Switches must be at least ____ ft. from the inside wall of a spa or hot tub.

A) 3
B) 5
C) 6
D) 10

Question 7

A clearly labeled emergency shutoff switch for the control of the recirculation system and jet system for spas and hot tubs must be installed at a point readily accessible to the users and not less than ____________________ away and within sight of the spa or hot tub.

Question 8

The wiring for storable pools must follow the basic requirements found in ____________________, Part 1.

Question 9

Tests conducted over the years have shown that a voltage gradient of ____ volts per foot can cause paralysis.

A) 1-1/2
B) 5
C) 15
D) 17

Question 10

The shock hazard to a person in a pool is quite different from that of the normal "touch" shock hazard to a person not submersed in water. The water makes contact with the entire skin surface of the body rather than just at one "touch" point.

Question 11

Where there are no metal parts in contact with pool water, there still is a need to bond the water to the pool deck to eliminate voltage gradients between the pool water and the deck.

Question 12

The branch-circuit conductor ampacity and the rating of the branch-circuit overcurrent devices must not be less than ____ percent of the total nameplate rated-load ampere rating of an electric pool water heater.

A) 110
B) 125
C) 135
D) 150

Question 13

Do not bond together metal raceways, metal piping, and other metal surfaces within 5 ft (1.5 m) of the inside walls of the spa or hot tub, unless separated by a permanent barrier, such as a wall or building.

Question 14

A self-contained spa or hot tub assembly may be connected using a wiring method that contains a copper equipment-grounding conductor not smaller than ____ AWG.

A) 10
B) 12
C) 14
D) 18

Question 15

A receptacle that supplies power to a spa or hot tub must be ____.

A) 30A
B) twist lock
C) GFCI protected
D) all of the above

Question 16

A hydromassage bathtub constitutes more of a shock hazard than a regular bathtub.

Question 17

The purpose of bonding together all metal parts and other conductive surfaces that are part of, in, and around a permanently installed swimming pool is to ____ voltage gradients in the pool and adjacent areas around the pool.

A) maximize
B) increase
C) stabilize
D) reduce

Question 18

The purpose of bonding together all metal parts and other conductive surfaces that are part of, in, and around a permanently installed swimming pool is to ____ voltage gradients in the pool and adjacent areas around the pool.

A) maximize
B) increase
C) stabilize
D) reduce

Question 19

Drownings have occurred when a person is trapped under water by the tremendous ____ at an unprotected drain in a swimming pool.

A) suction
B) size of the opening
C) electrical shock
D) none of the above

Question 20

At least one 125-volt, 15- or 20-amp GFCI-protected receptacle must be installed no closer than ____________________ ft but not farther than 10 ft from the inside wall of a spa or hot tub.

Question 21

Switches must be at least ____ ft. from the inside wall of a spa or hot tub.

A) 3
B) 5
C) 6
D) 10

Question 22

A clearly labeled emergency shutoff switch for the control of the recirculation system and jet system for spas and hot tubs must be installed at a point readily accessible to the users and not less than ____________________ away and within sight of the spa or hot tub.

Question 23

Drownings have occurred when a person is trapped under water by the tremendous ____ at an unprotected drain in a swimming pool.

A) suction
B) size of the opening
C) electrical shock
D) none of the above

Question 24

A receptacle that supplies power to a spa or hot tub must be ____.

A) 30A
B) twist lock
C) GFCI protected
D) all of the above

Question 25

Once you run conductors beyond (on the load side of) a GFCI device protecting that wiring, you are not permitted to have other conductors in the same raceway, box, or enclosure. Give two exceptions to this rule.

Question 26

Underground wiring is not permitted under pools or within ____ horizontally from the inside walls of a pool.

A) 10 ft (3 m)
B) 15 ft (4.5 mn)
C) 5 ft (1.5 m)
D) 6 ft (1.8 m)

Question 27

A self-contained spa or hot tub assembly may be connected using a wiring method that contains a copper equipment-grounding conductor not smaller than ____ AWG.

A) 10
B) 12
C) 14
D) 18

Question 28

We are permitted to use a flexible cord-and-plug connection for fixed or stationary equipment associated with a permanently installed pool. Underwater luminaires are included in this permission.

Question 29

At least one 125-volt, 15- or 20-amp GFCI-protected receptacle must be installed no closer than ____________________ ft but not farther than 10 ft from the inside wall of a spa or hot tub.

Question 30

The shock hazard to a person in a pool is quite different from that of the normal "touch" shock hazard to a person not submersed in water. The water makes contact with the entire skin surface of the body rather than just at one "touch" point.

Question 31

Where there are no metal parts in contact with pool water, there still is a need to bond the water to the pool deck to eliminate voltage gradients between the pool water and the deck.

Question 32

The branch-circuit conductor ampacity and the rating of the branch-circuit overcurrent devices must not be less than ____ percent of the total nameplate rated-load ampere rating of an electric pool water heater.

A) 110
B) 125
C) 135
D) 150

Question 33

Tests conducted over the years have shown that a voltage gradient of ____ volts per foot can cause paralysis.

A) 1-1/2
B) 5
C) 15
D) 17

Question 34

The wiring for storable pools must follow the basic requirements found in ____________________, Part 1.

Question 35

Components that must be bonded include ____.

A) metal fittings
B) conductive pool shells
C) perimeter surfaces within 3 ft (1 m)
D) all of the above

Question 36

Do not bond together metal raceways, metal piping, and other metal surfaces within 5 ft (1.5 m) of the inside walls of the spa or hot tub, unless separated by a permanent barrier, such as a wall or building.

Question 37

A hydromassage bathtub constitutes more of a shock hazard than a regular bathtub.

Question 38

UL Standard 1563 establishes the maximum water temperature at 104 degrees F, and the suggested maximum time of immersion is generally ____________________ minutes.