Maintenance Exam: Practice Exam #2
(Dewalt - 2025) correctly answered to
pass
Electrical equipment rooms or enclosures housing electrical apparatus of not over
1000 volts that are controlled by a lock (s) shall be considered accessible to _____.
A. qualified persons only
B. electricians only
C. the building management
D. the authority having jurisdiction - correct answer ✔✔A. qualified persons only
110.26 (F)
pg. 49
Where the premises wiring systems has branch-circuits supplied from more than
one nominal voltage system, each ungrounded conductor of a branch-circuit shall
be identified by ____ at the panelboard.
A. floor
B. voltage
C. phase and system
D. room - correct answer ✔✔C. phase and system
210.5(C)(1)
pg. 57
, Compliance with the provisions of the NEC will result in an electrical installation
that is essentially ______.
A. free from hazard
B. a good electrical system
C. an efficient system
D. all of these - correct answer ✔✔A. free from hazard
90.1(B)
pg. 30
Under normal conditions, an equipment grounding conductor will ______.
A. improve current flow
B. not carry current
C. carry current
D. reduce circuit resistance - correct answer ✔✔B.
Article 100
Trade knowledge
pg. 37
How much clear working space is required to be maintained between a 3-phase
480Y/277V main switchboard and a concrete block wall?
A. 3 feet
B. 3 feet, 6 inches
C. 4 feet
D. 4 feet, 6 inches - correct answer ✔✔B. 3 feet, 6 inches
(Dewalt - 2025) correctly answered to
pass
Electrical equipment rooms or enclosures housing electrical apparatus of not over
1000 volts that are controlled by a lock (s) shall be considered accessible to _____.
A. qualified persons only
B. electricians only
C. the building management
D. the authority having jurisdiction - correct answer ✔✔A. qualified persons only
110.26 (F)
pg. 49
Where the premises wiring systems has branch-circuits supplied from more than
one nominal voltage system, each ungrounded conductor of a branch-circuit shall
be identified by ____ at the panelboard.
A. floor
B. voltage
C. phase and system
D. room - correct answer ✔✔C. phase and system
210.5(C)(1)
pg. 57
, Compliance with the provisions of the NEC will result in an electrical installation
that is essentially ______.
A. free from hazard
B. a good electrical system
C. an efficient system
D. all of these - correct answer ✔✔A. free from hazard
90.1(B)
pg. 30
Under normal conditions, an equipment grounding conductor will ______.
A. improve current flow
B. not carry current
C. carry current
D. reduce circuit resistance - correct answer ✔✔B.
Article 100
Trade knowledge
pg. 37
How much clear working space is required to be maintained between a 3-phase
480Y/277V main switchboard and a concrete block wall?
A. 3 feet
B. 3 feet, 6 inches
C. 4 feet
D. 4 feet, 6 inches - correct answer ✔✔B. 3 feet, 6 inches
