IEC YEAR 1 EXAMINATION TEST 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ A.
True. Answer: One, two, or three circuit lighting track is available.
A.
True
B.
False
◉ D.
receptacle outlets. Answer: Instructions for most dimmers state that they
should not be used to control ___.
A.
incandescent lighting
B.
track lighting
C.
valence lighting
D.
,receptacle outlets
◉ A.
True. Answer: Electronic dimmers are used in some installations.
A.
True
B.
False
◉ C.
16.7. Answer: The maximum current-carrying capacity of a 2,000 watt,
120-volt dimmer is ___ amps.
A.
13.3
B.
20
C.
16.7
D.
none of these
,◉ B.
VA. Answer: Dimmers that can be used to control inductive loads such
as low-voltage lighting transformers are rated in ___.
A.
W
B.
VA
◉ A.
I only. Answer: 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
, ◉ C.
1,500
20 x 75 W = 1500 W = 1500 W dimmer. Answer: 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
◉ A.
Two. Answer: ___-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.
QUESTIONS WITH ANSWERS GRADED A+
◉ A.
True. Answer: One, two, or three circuit lighting track is available.
A.
True
B.
False
◉ D.
receptacle outlets. Answer: Instructions for most dimmers state that they
should not be used to control ___.
A.
incandescent lighting
B.
track lighting
C.
valence lighting
D.
,receptacle outlets
◉ A.
True. Answer: Electronic dimmers are used in some installations.
A.
True
B.
False
◉ C.
16.7. Answer: The maximum current-carrying capacity of a 2,000 watt,
120-volt dimmer is ___ amps.
A.
13.3
B.
20
C.
16.7
D.
none of these
,◉ B.
VA. Answer: Dimmers that can be used to control inductive loads such
as low-voltage lighting transformers are rated in ___.
A.
W
B.
VA
◉ A.
I only. Answer: 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
, ◉ C.
1,500
20 x 75 W = 1500 W = 1500 W dimmer. Answer: 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
◉ A.
Two. Answer: ___-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.
