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IEC YEAR 1 FINAL EXAM 2024-2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+ ||BRAND NEW!!
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) - ANSWER- 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 - ANSWER- c. 250.66 1 / 4
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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 - ANSWER- 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 2 / 4
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building structure - ANSWER- 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 - ANSWER- d. 80
A disconnect switch is fused with plug fuses and supplied from a 2-pole breaker in space 8-10 in the 277/480-volt, 3Ø, 4-wire panel. This is a Code violation.
a.True b.False - ANSWER- a. True
240.50(a)(2) Plug fuses can only be used on 120/240V or 120/208V panels or lower.
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A breaker panel is permitted to be located ___.
- in the bathroom in a house
II. in an electrical room in a school III. in a bathroom in a restaurant - ANSWER- 2 and 3 Only
Article ___ of the NEC® covers the requirements for fuses, fuse holders, and fuse adapters.
a.260 Part III b.270 Part IV c.240, Part V d.250 Part VI - ANSWER- c. 240, Part V
Which of the following types of current travel through a fuse?
a.overload b.short-circuit c.normal d.ground-fault e.all of these - ANSWER- e. all of these
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