Tested Questions & Verified Answers | Graded A+
1. Each occupant of a multi-family dwelling is required to have ready access to
their service disconnect. Are there any exceptions to this code provision?
Yes, for an industrial building
Yes, for buildings under continuous management supervision
No, the NEC provides no exceptions
Yes, for services of at least 400 amperes under continuous
management supervision
2. A receptacle under the kitchen counter of a dwelling is used to supply power
to a garbage disposal. This receptacle is ___ to be connected to one of the
two required small-appliance branch circuits.
required
permitted
not permitted
3. Describe why Class 2 remote-control cables cannot be attached to raceways
according to the NEC.
Class 2 cables can be attached if the raceway is flexible.
Class 2 remote-control cables are prohibited from being attached
to raceways to ensure safety and compliance with electrical codes.
Class 2 cables are allowed to be attached if they are used for power
supply.
Class 2 cables must always be installed independently of raceways.
,4. What does the code state about resistance requirements for footing steel
electrodes?
No, the code has no resistance requirements for footing steel
electrodes.
Yes, 25 ohms
Yes, 0 ohms
Yes, 50 ohms
5. The NEC permits electrical trade size 3⁄8 inch flexible metal conduit (FMC)
to be used for tap conductors (fixture whips) to luminaires, provided the
length of the flex does not exceed _.
10 feet
4 feet
6 feet
8 feet
6. What is the minimum rating required for a controller managing a 120-hp
motor?
Not less than 200 amps
Not less than 250 amps
Not less than 100 amps
Not less than 150 amps
,7. The clear work space on one side of equipment with exposed live parts,
which operates at 600 volts nominal or less to ground, and which will require
examination, adjustment or maintenance shall be at least which of the
following:
12 inches wide
30 inches wide
24 inches wide
2 times the width of the panel
8. Why are incandescent open lamps not allowed in clothes closets according
to safety regulations?
Incandescent open lamps do not provide sufficient light for closets.
Incandescent open lamps pose a fire hazard due to their exposed
heating elements.
Incandescent open lamps are less energy-efficient than other types.
Incandescent open lamps are too expensive to install in closets.
9. Excluding exceptions, nonmetallic sheathed cable is permitted in all of the
following areas EXCEPT:
Above a suspended ceiling of a retail store
Multifamily dwellings of wood frame construction
A four-story hotel of wood frame construction
In the walls of a convenience store of type III construction
, 10. For a residential service calculation, heat pump loads are required to be
calculated at _______________ percent of the nameplate rating when used without
any supplemental electric heating.
65
100
80
125
11. Where liquid tight flexible metal conduit is installed outdoors above grade,
the interior of this raceway is considered to be a __ location
Raintight
Wet
Damp
Dry
12. Describe why fixed outdoor electric deicing and snow-melting equipment is
classified as a continuous load.
It is classified as a variable load because its power consumption
fluctuates.
It is classified as a temporary load due to its seasonal use.
It is classified as a continuous load because it operates for
extended periods without interruption.
It is classified as an intermittent load because it only operates during
specific weather conditions.
13. Each motor-compressor shall be protected against overload and failure to
start by one of the following means. Therefore, a fuse or inverse time circuit