Deck 19: Specific Equipment

Question 1

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 (9.0 m) when assembled, shall be permitted to connect to the building's electrical system by means of a ____.

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

Answer 1

A

Question 2

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

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

Answer 2

C

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 ____.

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

Answer 3

A

Question 4

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

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

Question 5

Circuit voltage of heating/air-conditioning equipment branch circuits located on the elevator car shall not exceed ____ volts.

A) 500
B) 600
C) 800
D) 1000

Question 6

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.

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

Question 7

Neon tubing secondary conductor(s) shall be supported within ____ in.(150 mm) of the electrode connection.

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

Question 8

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

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 9

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).

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

Question 10

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

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

Question 11

An electric vehicle supply equipment's coupling means shall be stored or located at a height of not less than ____ above the floor level for indoor locations and 24 in.(600 mm) above the grade level for outdoor locations.

A) 12 in.(305 mm)
B) 14 in.(357 mm)
C) 18 in.(450 mm)
D) 24 in.(610 mm)

Question 12

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

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

Question 13

Conductors in pipe organs shall have ____ insulation.

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

Question 14

Branch circuits and feeders in a separately derived 60-volts to ground system shall be provided with a means to ____.

A) prevent current surges
B) simultaneously disconnect all ungrounded conductors
C) protect from lightning discharges
D) permit service access

Question 15

Equipment used to combine and level-match a multiplicity of electronic signals, as from microphones, electronic instruments, and recorded audio, is referred to as a(n) ____.

A) panel board
B) mixer
C) audio swapper
D) signal transformer

Question 16

DC power shall be supplied by a listed dc power supply with a maximum output of ____ volts.

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

Question 17

A pipe organ should use a minimum of ____ AWG conductors for electronic signal circuits, and at least 26 AWG for electromagnetic valve supply.

A) 24
B) 26
C) 28
D) 30

Question 18

FMC, LFMC, or LFNC of _____ nominal trade size or larger and no longer than 6 ft (1.8 m) can be installed between control panels and machine motors, machine brakes, motor-generator sets, disconnecting means, and pumping unit motors and valves.

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

Question 19

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

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

Question 20

All ____ receptacle outlets used in technical applications shall be GFCI protected.

A) 15- and 20-ampere
B) 15- and 25-ampere
C) 15- and 30-ampere
D) 20- and 30-ampere

Question 21

Unencapsulated structural reinforcing steel in pools shall be ____.

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

Question 22

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

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

Question 23

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

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

Question 24

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

A) 5 ft (1.5 m)
B) 6 ft (1.8 m)
C) 8 ft (2.4 m)
D) 9 ft (2.7 m)

Question 25

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 ____, but no more than 20 ft (6.0 m), from the pool's inside wall.

A) 5 ft (1.52 m)
B) 6 ft (1.83 m)
C) 8 ft (2.44 m)
D) 12 ft (3.66 m)