IEC YEAR 1 SEMESTER 2 EXAM
QUESTIONS WITH VERIFIED SOLUTIONS
NEW MODIFIED GRADED A+
The ___ supplied to the connected load increases when batteries are connected
in series.I. voltage II. current
A. I only
B. II only
C. both I & II
D. neither I nor II --CORRECT ANSWER--A. I only
A room is to be illuminated with track lighting. Twenty track heads (fixtures)
will be installed in the track. A 75 W PAR38 lamp will be installed in each
head. The lighting is to be controlled by a dimmer. The smallest dimmer that
can be installed has a rating of ___ watts.
A. 600
B. 1,000
C. 1,500 20 x 75 W = 1500 W = 1500 W dimmer
D. 2,000 --CORRECT ANSWER--C.
1,500 20 x 75 W = 1500 W = 1500 W dimmer
Page 1 of 105
,___-circuit lighting track will have five metal strips running the length of the
track. Three metal strips will be on one side of the track for connection to one or
two circuit neutrals and the ground. Two metal strips will be on the opposite
side of the track for connection to the two circuit "hot" or ungrounded
conductors.
A. Two
B. Three --CORRECT ANSWER--A.
Two
Lighting track ___ permitted to be installed within a zone extending 3 feet (900
mm) horizontally and 8 feet (2.5 m) vertically from the top of the bathtub rim.
A. is
B. is not --CORRECT ANSWER--B.
is not
Each 10' section of lighting track is rated for 20 amps at 125 volts. The circuit
supplying this track can be connected to a ___-amp, single-pole breaker in a
120/240-volt, 1Ø, 3-wire panel.I. 15 II. 20
A. I only
B. II only
C. either I or II
Page 2 of 105
,D. neither I nor II --CORRECT ANSWER--C.
either I or II
Track lighting is not permitted to be installed less than ___ above the floor
unless it has an open-circuit voltage of less that 30 volts RMS.
A. 5 feet (1.5 m)
B. 6 feet (1.8 m)
C. 6 feet 7 inches (2.0 m)
D. 7.5 feet (2.3 m) --CORRECT ANSWER--A.
5 feet (1.5 m)
If more than 4 feet of track is needed, at least one additional support must be
installed for every extension of ___ feet or less.
A. 4
B. 2
C. 6
D. 8
E. 3 --CORRECT ANSWER--A.
4
Page 3 of 105
, Lighting track shall be grounded in accordance with Article 250, and the track
sections shall be securely coupled to maintain continuity of the ___ throughout.
A. circuitry
B. polarization
C. grounding
D. all of these
E. none of these --CORRECT ANSWER--D.
all of these
By U.L. Standard 153, portable light tracks must have a cord not less than ___
feet in length.
A. 4
B. 6
C. 3
D. 8
E. 5 --CORRECT ANSWER--E. 5
One, two, or three circuit lighting track is available.
A. True
B. False --CORRECT ANSWER--A.
True
Page 4 of 105
QUESTIONS WITH VERIFIED SOLUTIONS
NEW MODIFIED GRADED A+
The ___ supplied to the connected load increases when batteries are connected
in series.I. voltage II. current
A. I only
B. II only
C. both I & II
D. neither I nor II --CORRECT ANSWER--A. I only
A room is to be illuminated with track lighting. Twenty track heads (fixtures)
will be installed in the track. A 75 W PAR38 lamp will be installed in each
head. The lighting is to be controlled by a dimmer. The smallest dimmer that
can be installed has a rating of ___ watts.
A. 600
B. 1,000
C. 1,500 20 x 75 W = 1500 W = 1500 W dimmer
D. 2,000 --CORRECT ANSWER--C.
1,500 20 x 75 W = 1500 W = 1500 W dimmer
Page 1 of 105
,___-circuit lighting track will have five metal strips running the length of the
track. Three metal strips will be on one side of the track for connection to one or
two circuit neutrals and the ground. Two metal strips will be on the opposite
side of the track for connection to the two circuit "hot" or ungrounded
conductors.
A. Two
B. Three --CORRECT ANSWER--A.
Two
Lighting track ___ permitted to be installed within a zone extending 3 feet (900
mm) horizontally and 8 feet (2.5 m) vertically from the top of the bathtub rim.
A. is
B. is not --CORRECT ANSWER--B.
is not
Each 10' section of lighting track is rated for 20 amps at 125 volts. The circuit
supplying this track can be connected to a ___-amp, single-pole breaker in a
120/240-volt, 1Ø, 3-wire panel.I. 15 II. 20
A. I only
B. II only
C. either I or II
Page 2 of 105
,D. neither I nor II --CORRECT ANSWER--C.
either I or II
Track lighting is not permitted to be installed less than ___ above the floor
unless it has an open-circuit voltage of less that 30 volts RMS.
A. 5 feet (1.5 m)
B. 6 feet (1.8 m)
C. 6 feet 7 inches (2.0 m)
D. 7.5 feet (2.3 m) --CORRECT ANSWER--A.
5 feet (1.5 m)
If more than 4 feet of track is needed, at least one additional support must be
installed for every extension of ___ feet or less.
A. 4
B. 2
C. 6
D. 8
E. 3 --CORRECT ANSWER--A.
4
Page 3 of 105
, Lighting track shall be grounded in accordance with Article 250, and the track
sections shall be securely coupled to maintain continuity of the ___ throughout.
A. circuitry
B. polarization
C. grounding
D. all of these
E. none of these --CORRECT ANSWER--D.
all of these
By U.L. Standard 153, portable light tracks must have a cord not less than ___
feet in length.
A. 4
B. 6
C. 3
D. 8
E. 5 --CORRECT ANSWER--E. 5
One, two, or three circuit lighting track is available.
A. True
B. False --CORRECT ANSWER--A.
True
Page 4 of 105
