PSI Journeyman Online Practice Test/ 100 Qs &
Ans / 2024-2025.
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 conductor’s terminal
or bus for an ac system operating at how many volts? - Answer: 1,000 volts or less
What is the maximum spacing for supports of 10 AWG copper conductors located
in a vertical raceway? - Answer: 100 feet
What is the maximum overcurrent protection for a 10 AWG copper conductor? -
Answer: 30 amperes
Page 1 of 15
, 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
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
Page 2 of 15
Ans / 2024-2025.
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 conductor’s terminal
or bus for an ac system operating at how many volts? - Answer: 1,000 volts or less
What is the maximum spacing for supports of 10 AWG copper conductors located
in a vertical raceway? - Answer: 100 feet
What is the maximum overcurrent protection for a 10 AWG copper conductor? -
Answer: 30 amperes
Page 1 of 15
, 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
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
Page 2 of 15
