Question 1

Equipotential bonding required by 680.26 shall be installed to reduce ____ in the pool area.

Accepted Answer

A)   power surges
B)   shorting
C)   load
D)   voltage gradients D

Question 2

Neon tubing secondary conductor(s) shall be supported within ____ in.of the electrode connection.

Accepted Answer

A)   4
B)   6
C)   12
D)   18 B

Question 3

A luminaire intended for installation in a pool or fountain structure's forming shell, where completely surrounded by water is referred to as ____.

Accepted Answer

A)   a wet niche luminaire
B)   aquatic luminaire
C)   forming shell
D)   packaged source A

Question 4

Electric signs and outline lighting systems shall be marked with the manufacturer's name, trademark or other identification, ____, and current rating.

Accepted Answer

A)   input voltage
B)   output wattage
C)   potential lumens
D)   average load

Question 5

The power source for a pipe organ shall be a transformer-type rectifier having a direct current (dc) potential of ____ volts or less.

Accepted Answer

A)   10
B)   20
C)   25
D)   30

Question 6

The minimum conductor size for traveling cables that feed lighting circuits is ____ AWG copper.

Accepted Answer

A)   14
B)   16
C)   18
D)   20

Question 7

A junction box for an underwater application shall be comprised of ____, brass, suitable plastic, or other approved corrosion-resistant material.

Accepted Answer

A)   stainless steel
B)   aluminum
C)   tin
D)   copper

Question 8

Article 647 covers the installation and wiring of sensitive electronic equipment that is connected to a separately derived system operating at ____ volts line-to-line and 60 volts to ground.

Accepted Answer

A)   100
B)   112
C)   120
D)   180

Question 9

Individual office furnishings of the freestanding type, or groups of individual office furnishings that are electrically connected, are mechanically contiguous, and do not exceed 30 ft when assembled, shall be permitted to connect to the building's electrical system by means of a ____.

Accepted Answer

A)   single flexible cord and plug
B)   rigid raceway
C)   surge protector and concealed wiring
D)   dual flexible cable and panel board

Question 10

Electric signs and outline lighting system equipment in wet locations, unless of the listed watertight type, shall be weatherproof and, if necessary, have ____ in accordance with 600.9(D)(1) through (3).

Accepted Answer

A)   surge protection
B)   lightening protection
C)   a front-mounted disconnect
D)   drain holes

Question 11

Conductors in pipe organs shall have ____ insulation.

Accepted Answer

A)   standard polymer
B)   thermoplastic or thermosetting
C)   thermoelastic or thermo-molded
D)   hybrid plastic/polymer

Question 12

An electric vehicle supply equipment's coupling means shall be stored or located at a height of not less than ____ in. above the floor level for indoor locations and 24 in. above the grade level for outdoor locations.

Accepted Answer

A)   12
B)   14
C)   18
D)   24

Question 13

Flexible metal conduit, ____ metal conduit, liquidtight flexible nonmetallic conduit, and flexible cords and cables are permitted wiring methods are permitted on the counterweight assembly and on the car assembly in elevators.

Accepted Answer

A)   rigid sealed
B)   flexible hybrid
C)   liquidtight flexible
D)   liquidtight rigid

Question 14

LFNC of ____ in. nominal trade size or larger, as defined in 356.2(2), can be installed in escalators or moving walkways in lengths greater than 6 ft.

Accepted Answer

A)   1/4
B)   3/8
C)   5/8
D)   3/4

Question 15

A separately derived ____ with 60 volts on each of two ungrounded conductors to a grounded neutral conductor can be used to reduce objectionable noise in sensitive electronic equipment locations.

Accepted Answer

A)   110-volt, single-phase, 3-wire system
B)   115-volt, single-phase, 3-wire system
C)   120-volt, single-phase, 3-wire system
D)   125-volt, single-phase, 3-wire system

Question 16

Unit heaters shall not be mounted over the pool or`within the area extending ____ ft horizontally from the inside walls of a pool.

Accepted Answer

A)   5
B)   6
C)   8
D)   9

Question 17

Each hoistway elevator pit shall have at least one ____-volt, single phase, 15- or 20-ampere duplex receptacle

Accepted Answer

A)   100
B)   120
C)   125
D)   140

Question 18

Neon tubing's length and design shall not cause a continuous overcurrent beyond the capacity of the transformer or ____.

Accepted Answer

A)   surge protection
B)   disconnecting means
C)   electronic power supply
D)   branch circuit

Question 19

Where a permanently installed pool is installed, no fewer than one 125-volt 15- or 20-ampere receptacle on a general-purpose branch circuit shall be located a minimum of ____ ft, but no more than 20 ft, from the pool's inside wall.

Accepted Answer

A)   5
B)   6
C)   8
D)   12

Question 20

Unencapsulated structural reinforcing steel in pools shall be ____.

Accepted Answer

A)   bonded together by steel tie wires or the equivalent
B)   grounded via rigid wire cables to an earth ground
C)   bonded using equipotential bonding
D)   encased in corrosion-resistant materials

Exam 19: Specific Equipment