Test (Latest 2025/2026 Update)
Questions with Verified Answers |
100% Correct| Graded A.
Question:
In general, overhead service-drop conductors shall NOT be smaller than
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_____.?
Answer:
8 AWG copper
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overhead service-drop conductors to be not smaller than 8 AWG copper
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or 6 AWG aluminum or copper-clad aluminum. Do not get service-drop
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conductors, the overhead conductors between the utility electric supply
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system and the service point, confused with the service-entrance
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conductors, the conductors from the service point from the utility
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company to the service disconnecting means.
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Question:
,When a galvanized eye-bolt is to be used as the point of attachment for
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an electrical service, the NEC requires the eye-bolt to be installed NOT
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less than _____ above finished grade.?
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Answer:
10 ft.
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provide adequate vertical clearance of the conductors and prevent
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physical damage to the conductors and prevent persons from making
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accidental contact with the conductors which may create a shock hazard
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or electrocution. In no case shall the point of attachment of the service-
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drop conductors to be less than 10 ft. above finished grade.
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Question:
Why is electrical continuity required for metallic conduit??
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Answer:
To establish an effective ground-fault path and facilitate the operation of
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the over-current protective device.
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Electrical continuity is required for metallic conduit to establish an
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effective ground-fault path and facilitate the operation of the overcurrent
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protective device. i,-
Question:
, In dwelling units, receptacle outlets installed for countertop surfaces, must
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be located above, but NOT more than _____ above the countertop or work
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surface.?
Answer:
20 inches
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receptacle outlets installed for countertop or work surfaces in dwelling
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units may be located on or above, but not more than 20 in. above the
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countertop or work surface. The intent of this rule is to eliminate the use
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of unsightly extension cords (which reduces the amount of usable
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countertop space) on the countertop or work surface to supply cord-and-
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plug connected appliances. Also, receptacles located more than 20 inches
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above countertops or work surfaces may interfere with the cabinetry to be
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installed.
Question:
When conductors are installed in a conduit or tubing nipple of _____ or
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less in length, the ampacity adjustment factors for more than three (3)
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current-carrying conductors in the raceway, are not required to be i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
applied.?
Answer:
24 inches
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adjustment factors for more than three (3) current-carrying conductors in
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raceways shall not apply where the raceway is not more than 24 inches in
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length. Where more than 3 current-carrying conductors are installed in
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