Master Electrician's Exam Prep Guide Exam
question and answers 2026 upgrade
1. A listed ____ shall be installed in or on all emergency systems switchboards
and panelboards.
A. Ground-fault circuit interrupter (GFCI)
B. Surge-protective device (SPD)
C. Arc-fault circuit interrupter (AFCI)
D. Leakage-current detector-interrupter (LCDI): B. Surge-protective device (SPD)
pg. 607
2. In general, where a cablebus system is rated 95 amperes, the MAXIMUM
allowable rating of the overcurrent device that may be used to protect the
cablebus conductors is ____.
A. 80 amperes
B. 90 amperes
C. 95 amperes
D. 100 amperes: D. 100 amperes
pg. 227, 98, 100
3. A feeder tap less than 25 feet in length is note required to have overcurrent
protection if the ampacity of the tap conductors is NOT less than ____ of the
rating of the overcurrent device protecting the feeder conductors.
A. One-half
B. One-fourth
C. One-third
D. 75 percent: C. One-third
pg. 101
4. Given: A flexible metal conduit (FMC) to be installed will contain three (3)
size 400 kcmil THWN copper conductors and one (1) size 250 kcmil copper
, conductor. Where the FMC is more than 24 inches long, what MINIMUM trade
size FMC is permitted for this installation?
A. 3 inches
1/8
Master Electrician's Exam Prep Guide Exam
B. 3.5 inches
C. 2.5 inches
D. 4 inches: A. 3 inches
pg. 701, 696
5. In general, which of the following MUST be provided at a patient bed location
used for general care (Category 2) spaces in a hospital?
A. One branch circuit from the normal system
B. One branch circuit from the critical branch of the essential electrical system
C. "Hospital-grade" receptacles
D. All of these: D. All of these
pg. 438
6. When an electrical service is required to have a grounded conductor present, what is the smallest
grounded conductor permitted for an electric service using size 1000 kcmil copper ungrounded
conductors installed in a single
raceway?
A. 3/0 copper
B. 2/0 copper
C. 1/0 copper
D. 4/0 copper: B. 2/0 copper
pg. 115, 127
7. Determine the MINIMUM number of 20-ampere, 277-volt, general-lighting
branch circuits required for a 150,000 square foot retail department store
where the actual connected load is 400 kVA of fluorescent lighting; consider
question and answers 2026 upgrade
1. A listed ____ shall be installed in or on all emergency systems switchboards
and panelboards.
A. Ground-fault circuit interrupter (GFCI)
B. Surge-protective device (SPD)
C. Arc-fault circuit interrupter (AFCI)
D. Leakage-current detector-interrupter (LCDI): B. Surge-protective device (SPD)
pg. 607
2. In general, where a cablebus system is rated 95 amperes, the MAXIMUM
allowable rating of the overcurrent device that may be used to protect the
cablebus conductors is ____.
A. 80 amperes
B. 90 amperes
C. 95 amperes
D. 100 amperes: D. 100 amperes
pg. 227, 98, 100
3. A feeder tap less than 25 feet in length is note required to have overcurrent
protection if the ampacity of the tap conductors is NOT less than ____ of the
rating of the overcurrent device protecting the feeder conductors.
A. One-half
B. One-fourth
C. One-third
D. 75 percent: C. One-third
pg. 101
4. Given: A flexible metal conduit (FMC) to be installed will contain three (3)
size 400 kcmil THWN copper conductors and one (1) size 250 kcmil copper
, conductor. Where the FMC is more than 24 inches long, what MINIMUM trade
size FMC is permitted for this installation?
A. 3 inches
1/8
Master Electrician's Exam Prep Guide Exam
B. 3.5 inches
C. 2.5 inches
D. 4 inches: A. 3 inches
pg. 701, 696
5. In general, which of the following MUST be provided at a patient bed location
used for general care (Category 2) spaces in a hospital?
A. One branch circuit from the normal system
B. One branch circuit from the critical branch of the essential electrical system
C. "Hospital-grade" receptacles
D. All of these: D. All of these
pg. 438
6. When an electrical service is required to have a grounded conductor present, what is the smallest
grounded conductor permitted for an electric service using size 1000 kcmil copper ungrounded
conductors installed in a single
raceway?
A. 3/0 copper
B. 2/0 copper
C. 1/0 copper
D. 4/0 copper: B. 2/0 copper
pg. 115, 127
7. Determine the MINIMUM number of 20-ampere, 277-volt, general-lighting
branch circuits required for a 150,000 square foot retail department store
where the actual connected load is 400 kVA of fluorescent lighting; consider
