2005 RESIDENTIAL WIREMAN RENEWAL EXAM #1 - QUESTIONS
1.
The maximum allowable circuit breaker ampacity for use with 8 AWG copper
NM-B cable supplying a range is:
a. 30 amperes
b. 40 amperes
c. 50 amperes
d. 60 amperes
2.
A detached garage fed from a dwelling with a 3-wire feeder of 4/0 aluminum
USE and a 200 ampere breaker requires a minimum size copper grounding
electrode conductor to a concrete electrode of:
a. 8 AWG
b. 6 AWG
c. 4 AWG
d. 2 AWG
3.
A listed instantaneous water heater shall be permitted to be subdivided into
circuits protected at NOT more than:
a. 60 amperes
b. 100 amperes
c. 120 amperes
d. 150 amperes
4.
The minimum height required for luminaries without GFCI protection above
an indoor spa or hot tub shall be:
a. 5 feet
b. 7 feet 6 inches
c. 10 feet
d. 12 feet
5.
Motor control circuits shall be arranged so that they will be disconnected from
all sources of supply when:
a. The disconnecting means is in the open position.
b. The disconnecting means is not within sight of the controller.
c. The Disconnecting means is integral with the controller.
d. Installed in a motor control center.
6.
The minimum internal depth of a box that is intended to enclose a flush device
shall be:
a. 1/2 inch
b. 9/16 inch
c. 15/16 inch
d. 1 1/4 inch
7.
The maximum height that kitchen counter-top receptacles may be installed
above the counter-top shall be:
a. 12 inches
b. 18 inches
c. 20 inches
d. 22 inches
8.
When installed in service of a building or structure a transient voltage surge
suppressor shall be connected:
a. On the line side of the service disconnect over current device.
b. On the load side of the service disconnect overcurrent device.
c. On the meter housing.
9.
The maximum allowable ampacity of 18 AWG fixture wire is:
a. Twelve amperes
b. Ten amperes
c. Eight amperes
d. Six amperes
10.
Equipment grounding conductors that are part of flexible cords shall not be
smaller than:
a. 12 AWG copper
b. 14 AWG copper
c. 16 AWG copper
d. 18 AWG copper
11.
Where one or more lighting outlet(s) are installed for interior stairways, there
shall be a wall switch at each floor level, and landing level that includes an
entry way, to control the lighting outlet(s) where the stairway between floor
levels has:
a. Six risers or more
b. Five risers or more
c. Four risers or more
d. Three risers or more
12.
Metal enclosures for grounding electrode conductors shall be:
a. Electrically continuous
b. Electrically isolated
c. Not permitted
d. Rigid Metal Conduit only
13.
Storage batteries used as a source of power for emergency systems shall be of
suitable rating and capacity to supply and maintain the total load for a
minimum or:
a. 1/2 hour
b. 1 hour
c. 1 1/2 hour
d. 2 hours
14.
A lighting and appliance branch circuit is a branch circuit that has a
connection to the neutral of the panel board and has overcurrent protection of
NOT more than:
a. Fifteen amperes
b. Twenty amperes
c. Thirty Amperes
d. Forty amperes
15.
When installed as a feeder, type USE shall be permitted to be terminated at an
indoor location where the Type USE cable emerges from the ground. The
length of the cable extending indoors to the first termination box shall NOT
exceed:
a. Three feet
b. Six feet
c. Nine feet
d. Twelve feet
16.
All metal piping systems, metal parts of the electrical equipment, and pump
motors associated with the hydro message tub shall be bonded together using
a copper bonding jumper, insulated, covered, or bar, NOT smaller than:
a. 10 AWG solid
b. 8 AWG solid
c. 6 AWG solid
d. 4 AWG solid
17.
The point of attachment of the service drop conductors to a building or other
structure shall provide a minimum clearance of NOT less than:
a. Eight feet
b. Ten feet
c. Twelve feet
d. Fifteen feet
18.
All wiring installed in or under a hanger floor shall comply with the
requirements for:
a. Class 1, Division 1 locations
b. Class 1, Division 2 locations
c. Class 2 Division 1 locations
d. Class, 2 Division 2 locations
19.
The maximum number of grounded conductors allowed to be terminated in an
individual terminal, if conductors are not paralleled, in the neutral bus of a
panel board:
a. One conductor
b. Two conductors
c. Three conductors
d. Four conductors
20.
Unless listed for the control of other loads, general use dimmer switches, shall
only be used to control:
a. Switched receptacles for cord connected incandescent luminaries.
b. Permanently installed incandescent luminaries.
c. A ceiling fan with luminaire.
d. Holiday decorative lighting.
2005 RESIDENTIAL WIREMAN RENEWAL EXAM #1 – ANSWERS
1.
b 334.80, Table 310.16 60oC Column The ampacity of NM-B cable shall be
in accordance with the 60oC conductor temperature rating.
2.
c 240.32 (A) (E), Table 250.66, 250.66 (B) The size of the grounding
electrode conductor of a grounded ac system shall not be less than given in
Table 250.66. One of the exceptions states that where the grounding electrode
conductor is connected to a concrete-encased electrode as permitted in 250.52
(A) (3), that portion of the conductor that is the sole connection to the
grounding electrode shall not be required to be larger than 4 AWG copper
wire. Both Table 250.66 and 250.66 (B) would require a #4 AWG copper
grounding electrode conductor.
3.
d 422.11 (F) (3)
4.
d 680.43 (B) (1) (a)
5.
a 430.74 (A)
6.
c 314.24
7.
c 210.52 (C) (5)
8.
b 285.21 (A) (1)
9.
d 402.5, Table 402.5
10.
d 250.122 (E)
11.
a 210.70 (A) (2) (c)
12.
a 250.64 (E)
13.
c 700.12 (A)
14.
c 408.14
15.
b 338.10 (B) (4) (b)
16.
b 680.74
17.
b 230.26
18.
a 513.3 (A), 513.8
19.
a 408.21
20.
b 404.14 (E)