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IEC YEAR 1 FINAL EXAM NEWEST ACTUAL EXAM COMPLETE ACCURATE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED A+$18.49
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IEC YEAR 1 FINAL EXAM 2024-2025
NEWEST ACTUAL EXAM COMPLETE
ACCURATE EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) /ALREADY
GRADED A+
What is the monthly energy cost to operate a 200-
watt high-pressure sodium lamp? Electricity costs
$0.11 per kW-hr and the lamp will be ON for 12 hours
per day. There are 30 days in a billing month.
a.$7.92
b.$8.80
c.$15.94
d.$6.60
e.$660
a. $7.92
200W x 12hrs x 30 days = 72,000
72,000/1000 = 72kWh
0.11 x 72kWh = $7.92
,To minimize conductor insulation damage and arcing
damage to electrical equipment during a ground
fault or a short circuit, ___ should be minimized.
a.time duration of the fault
b.ampere level of the fault current
c.both a and b
d.neither a nor b
a. time duration of the fault
Self-tapping sheet metal screws (TEK screws) ___
permitted to be used to connect the equipment
grounding conductor to a metal box.
Are Not
According to Article 250, a metal underground water
pipe that is in direct contact with the earth for 10 ft.
or more (including any metal well casing effectively
bonded to the pipe) and electrically continuous (or
made electrically continuous by bonding around
insulating joints or insulating pipe) to the points of
connection of the grounding electrode conductor and
the bonding conductors would be a good ___.
,c. grounding electrode
If connected to a metal water piping system, the
grounding electrode conductor shall be connected at
some point within the first ___ of where it enters the
building.
a.25 ft (7.5 m)
b.10 ft (3.0 m)
c.5 ft (1.52 m)
c. 5 ft (1.52 m)
When determining the minimum size of a grounding
electrode conductor, Table ___ is used.
a.250.122
b.310.15(B)(16)
c.250.66
d.314.16(A)
e.none of these
c. 250.66
The grounding blade on an attachment plug is ___
than the current-carrying conductor blades. This is
to ensure that the grounding connection is made
before the current-carrying conductor connections
and breaks its connection after the current-carrying
conductor connections (first make-last break).
, a.more durable
b.longer
c.larger
d.tarnish-resistant
b. longer
An equipment grounding conductor (EGC) is the
conductor that is ___.
a.installed with the branch-circuit conductors in a
conduit or cable run
b.installed between the neutral bar and the ground
bar in the service panel
c.connected between the hot and cold water pipes at
a water heater
d.connected to the neutral bar in the service panel,
the ground rod, the incoming main water service
pipe, and/or the steel building structure
a. installed with the branch-circuit conductors in a
conduit or cable run
Generally, an overcurrent protective device is not
permitted to be continuously loaded to more than ___
percent of its rating.
a.50
b.125
c.100
d.80
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