NEWEST ACTUAL EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
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The MINIMUM length of free conductor to be left at each junction
box for the purpose of splicing conductors, or making connections to
illuminares or devices shall be _____ .
6 inches
free conductor is to be left at each junction box for splices or the
connection of luminaires or devices. The intent of this rule is to
ensure enough conductor slack for the terminal connections or
splices to be made easily.
,In general, overhead service-drop conductors shall NOT be smaller
than
_____.
8 AWG copper
overhead service-drop conductors to be not smaller than 8 AWG
copper or 6 AWG aluminum or copper-clad aluminum. Do not get
service-drop
conductors, the overhead conductors between the utility electric
supply system and the service point, confused with the service-
entrance
conductors, the conductors from the service point from the utility
company to the service disconnecting means.
When a galvanized eye-bolt is to be used as the point of
attachment for an electrical service, the NEC requires the eye-
bolt to be installed NOT less than above finished grade.
10 ft.
provide adequate vertical clearance of the conductors and prevent
physical damage to the conductors and prevent persons from
making accidental
contact with the conductors which may create a shock hazard or
electrocution. In no case shall the point of attachment of the
service-drop conductors to be less than 10 ft. above finished
grade.
, Why is electrical continuity required for metallic conduit?
To establish an effective ground-fault path and facilitate the
operation of the over-current protective device.
Electrical continuity is required for metallic conduit to establish an
effective ground-fault path and facilitate the operation of the
overcurrent protective device.
In dwelling units, receptacle outlets installed for countertop
surfaces, must be located above, but NOT more than above
the countertop or work
surface.
20 inches
receptacle outlets installed for countertop or work surfaces in
dwelling units may be located on or above, but not more than
20 in. above the
countertop or work surface. The intent of this rule is to eliminate
the use of unsightly extension cords (which reduces the amount of
usable countertop space) on the countertop or work surface to
supply cord-and-plug
connected appliances. Also, receptacles located more than 20
inches above countertops or work surfaces may interfere with the
cabinetry to be installed.