2026 STUDY QUESTIONS WITH VERIFIED CORRECT
SOLUTIONS GUARANTEED PASS | RATED A+
What is the maximum permitted length of the branch-circuit wiring from the branch-circuit
overcurrent device to the first outlet for a 12 AWG conductor with a listed outlet branch-circuit
type arc-fault circuit interrupter installed at the first outlet box? - Answer>>> 70 feet
If the branch circuit supplies a single non-motor-operated appliance, the rating of overcurrent
protection shall not exceed 20 amperes if the overcurrent protection rating is not marked and the
appliance is rated at... - Answer>>> 13.3 amperes or less
Alternating-current systems of less than 50 volts shall be grounded where supplied by
transformers, if the transformer supply system exceeds which of the following? - Answer>>>
150 volts to ground
What is the maximum spacing for supports of 10 AWG copper conductors located in a vertical
raceway? - Answer>>> 100 feet
For permanently connected appliances, the branch-circuit overcurrent device shall be permitted
to serve as the disconnecting means for appliances rated at not over - Answer>>> 300 volt-
amperes or 1/8 hp.
What is the maximum overcurrent protection for a 10 AWG copper conductor? - Answer>>> 30
amperes
Overcurrent protection for feeders and branch circuits supplying electric vehicle supply
equipment shall be sized for continuous duty and shall have a rating of not less than what
percentage of the maximum load of the electric vehicle supply equipment? - Answer>>> 125%
Receptacles in residential units shall be installed such that no point measured horizontally along
the floor line of any wall space is more than how far from a receptacle outlet? - Answer>>> 6
feet
A minimum of how many threads needs to be engaged if machine screws are used to fasten
bonding jumpers? - Answer>>> 2
, A circuit breaker does not have an interrupter rating shown on it. What is the interrupter rating of
this circuit breaker? - Answer>>> 5,000 amperes
Who is responsible for providing head protective gear to employees who are working in areas
where there is a possible danger of head injury from impact, falling or flying objects, or from
electrical shock and burns? - Answer>>> employer
Which is best defined as an unintentional, electrically conductive connection between an
ungrounded conductor of an electrical circuit and the normally non-current-carrying conductors,
metallic enclosures, metallic raceways, metallic equipment, or earth? - Answer>>> ground fault
Where an electrical vault is required or specified for conductors and equipment operating at over
600 volts, nominal, the floor when in contact directly with earth shall be constructed in what
manner? - Answer>>> minimum of 4-inch-thick concrete
Dry-type transformers rated over which voltage shall be installed in a vault? - Answer>>>
35,000 volts
A panelboard for a mobile home shall be rated not less than which of the following? -
Answer>>> 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? - Answer>>> 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? - Answer>>> 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? -
Answer>>> 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? - Answer>>> 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? - Answer>>> 100 feet