62. Insulated grounded conductors of sizes ____ AWG or smaller must be identified by a continuous white or gray outer finish or by three continuous white stripes on other than green insulation along the entire length of the conductors.
A. 1
B. 3
C. 6
D. 10
63. Snap switches rated ________ amperes or less directly connected to aluminum conductors must be marked CO/ALR.
A. 15
B. 20
C. 25
D. 30
64. Metal covers and plates must be _____________________.
A. neutral
B. insulated
C. bonded
D. grounded
65. Countertop spaces separated by ___________________ must be considered as separate countertop spaces in applying the receptacle outlet requirements for kitchens.
A. range tops
B. refrigerators
C. sinks
D. any of the above
E. none of the above
66. All branch circuits that supply 120-volt, single-phase, _______________ outlets installed in family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreations rooms, closets, hallways and similar rooms or areas must be protected by a combination type arc-fault circuit interrupter installed to provide protection of the branch circuit. Exceptions ignored.
A. 15, 20 and 30-ampere
B. 15-ampere
C. 15- and 20-ampere
D. 20-ampere
67. A single family home has a cord on the kitchen waste disposal that is 72" long.
A. This is ok because it is over the 18" minimum.
B. This is a violation of the code because it is over the 48 in maximum
C. This is a violation of the code because it is over the 36 in maximum
D. The code does not place restrictions on appliance cords 6 feet or under.
68. What is the demand factor for 2 ranges with a kVA rating of 7 kVA.
A. 100
B. 80
C. 75
D. 65
69. Combustible wall or ceiling finish exposed between the edge of a fixture canopy or pan and the outlet box must be ______________________________.
A. enclosed
B. covered with noncombustible material
C. guarded
D. grounded
70. During backfill for underground wiring where necessary to prevent physical damage to the raceway or cable, protection must be provided in the form of_________________________________________________________.
A. suitable boards
B. granular or selected material
C. suitable sleeves
D. Any of the above answers
71. The service overcurrent device must be an integral part of the service disconnecting means or must be located _____________________________ thereto.
A. immediately adjacent
B. within sight
C. within the same cabinet
D. within reach of the immediately adjacent
72. What is the maximum overcurrent protection rating in amperes, allowed for a No. 12 AWG copper conductor feed branch circuit.
A. 15
B. 20
C. 25
D. 30
73. Where conductors are to be spliced, terminated or connected to fixtures or devices, a minimum length of ____ inches of free conductor must be provided at each outlet, junction or switch point and the required length must be measured from the point in the box where the conductor emerges from its raceway or cable sheath.
A. 3
B. 6
C. 8
D. 10
74. Bends must be made so as not to __________________________________________.
A. reduce the internal diameter of raceways
B. change the path of conductors more than 45 degrees
C. require less conductors in a circuit
D. damage the wiring method
E. A or D
75. Which Chapters of the International Residential Code deals with electrical wiring and systems in one and two family dwellings.
A. Chapters13 through 32
B. Chapters 34 through 43
C. Chapters23 through32
D. Chapters 33 through 60
76. A plate electrode that exposes not less than _________ square feet of surface to exterior soil must be considered as a grounding electrode.
A. 5
B. 4
C. 3
D. 2
77. What is the minimum burial depth in inches for direct burial cables or conductors in underground wiring in a trench below 2-inch-thick concrete or equivalent
A. 4
B. 12
C. 18
D. 24
78. Nonconductive coatings on equipment to be grounded must be removed from threads and other contact surfaces to ________________________________ or must be connected by fittings that make such removal unnecessary.
A. ensure good electrical continuity
B. make assembly easier
C. ensure good electrical resistance for grounding
D. none of the above
79. Switches or circuit breakers must not disconnect the grounded conductor of a circuit except where the switch or circuit breaker.
A. simultaneously disconnects all grounded conductors of the circuit
B. simultaneously disconnects all conductors of the circuit
C. disconnects all grounded conductors of the circuit
D. simultaneously disconnects all grounding conductors of the circuit
80. In locations where electrical equipment is likely to be ________________________, enclosures or guards must be so arranged and of such strength as to prevent this from occurring.
A. used by the public
B. be non-accessible
C. exposed to physical damage
D. none of the above
81. A _____ AWG or larger grounding conductor must be protected where exposed to severe physical damage.
A. 2
B. 4
C. 6
D. 8
82. A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system.
A. Panelboard
B. Raceway
C. Plenum
D. Airway
83. A 240 volt single phase three wire feeder circuit has a continuous load of 65 amps. The ambient temperature of the area in which the wires are running is 70 degrees Celsius. Which of the following insulation types and wire sizes would be acceptable to feed this branch circuit if copper-clad aluminum wire was used?
A. TW 3
B. UF 3
C. THHN 4
D. XHHW 4
E. C and D
84. Each appliance must be provided with a means to disconnect all ___________ supply conductors.
A. ungrounded
B. grounded
C. ungrounding
D. neutral
85. A minimum of one 20-ampere branch circuit must be provided to supply the bathroom receptacle outlet(s) and these circuits ____________________________.
A. may serve all the bathrooms in the dwelling
B. may not have more than one outlet
C. shall have no other outlets
D. none of the above
86. Outlet boxes that do not enclose devices or utilization equipment must have an internal depth of not less than _____________ inch.
A. 0.5
B. 1
C. 1.125
D. 1.5
87. There must be a wall switch at each floor level and landing level that includes an entryway to control the lighting outlets where the stairway between floor levels has _______ or more risers. Exception ignored.
A. three
B. six
C. eight
D. twelve
88. Equipment grounding conductors must be identified by a continuous ________ color or a continuous ________ color with one or more yellow stripes on the insulation or covering, except where bare.
A. green, green
B. white, green
C. red, white
D. black, white
89. A grounding connection must not be made to any ________________________ on the load side of the service disconnecting means. Exceptions ignored.
A. neutral wire conductor
B. grounding conduit
C. grounded circuit conductor
D. none of the above
90. What is the maximum number of No. 12 AWG conductors allowed in a 4 in. square trade size metal box that is 1-1/2 inches deep.
A. 5
B. 7
C. 9
D. 12
91. The service disconnecting means must consist of not more than __________ switche(s) or ________ circuit breaker(s) mounted in a single enclosure or in a group of separate enclosures.
A. one, one
B. three, three
C. six, six
D. eight, six
92. AFCI protection is not required for a branch circuit supplying only a ____________ where the branch circuit is wired with metal outlet and junction boxes and RMC, IMC, EMT or steel armored cable Type AC meeting the requirements of Section E3908.8.
A. fire alarm system
B. bedroom
C. dining room
D. sunroom
93. What is the minimum burial depth in inches for nonmetallic raceways listed for direct burial without concrete encasement or other approved raceways in underground wiring in a trench below 2-inch-thick concrete or equivalent
A. 4
B. 6
C. 12
D. 18