A fitting is a part of a wiring system that is intended primarily to perform which type of function? -
mechanical
When the disconnecting means of a transformer is located remotely it must be? - lockable
If installed and routed on the outside of a raceway, the length of the equipment bonding jumper shall
not exceed how many feet? - 6 feet
What is an askarel? - a group of nonflammable synthetic chlorinated hydrocarbons used as electrical
insulating media
In which locations are the installation of flexible metal conduit permitted? - concealed locations
Unlisted nonconductive outside plant optical fiber cables shall not be permitted to be installed in which
type of raceways? - flexible metal conduit.
Where the negative polarity of a dc system does not serve as the connection point for the grounded
conductor, which color finish can be used to identify the negative ungrounded conductor? - black
Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads,
the minimum feeder conductor size shall have an allowable ampacity not less than the noncontinuous
load plus what percentage of the continuous load? - 125%
Where an ac system is grounded at any point, the grounded conductors shall be routed with the
ungrounded conductors to each service disconnecting means and shall be connected to each
disconnecting means grounded conductors terminal or bus for an ac system operating at how many
volts? - 1,000 volts or less
What is the maximum spacing for supports of 10 AWG copper conductors located in a vertical raceway? -
100 feet
, What is the maximum overcurrent protection for a 10 AWG copper conductor? - 30 amperes
A circuit breaker does not have an interrupter rating shown on it. What is the interrupter rating of this
circuit breaker? - 5,000 amperes
Dry-type transformers rated over which voltage shall be installed in a vault? - 35,000 volts
A panelboard for a mobile home shall be rated not less than which of the following? - 50 amperes
An electrical appliance is rated at 1,500 watts, and is connected to 120 volts. What is the resistance
associated with this appliance? - 9.6 ohms
High-impedance grounded neutral systems in which a grounding impedance limits the ground fault
current to a low value shall be permitted for which type of system? - 3-phase ac systems of 480 volts to
1,000 volts
Where the positive polarity of a dc system does not serve as the connection for the grounded conductor,
which color finish can be used to identify the positive ungrounded conductor? - red
Information technology equipment shall be permitted to be connected to a branch circuit by a power-
supply cord with a maximum length of how many feet? - 15 feet
What is the maximum distance that the emergency controls for an attended self-service motor fuel
dispensing facility shall be located from the dispensers? - 100 feet
What is the greatest root-mean-square (effective) difference of potential between any two conductors of
a circuit defined as? - voltage
A motor controller disconnecting means shall be permitted to be out of sight of the controller for motor
circuits over how many volts? - 1,000 volts, nominal