Guide – Practice Questions
with Verified Answers. GRADED
A+. Latest 2026/2027 Update
The value of current, time, or both at which an adjustable circuit breaker is set
to trip is known as?
A) Inverse time
B) Ampacity
C) Automatic
D) Setting - Answer✔✔-D) Setting.
Art. 100 Defintions
The cross-sectional area of three or more THW conductors in a conduit must
not exceed what percent of the cross-sectional area of the conduit?
A) 30%
B) 40%
C) 50%
,D) 60% - Answer✔✔-B) 40 %
Chapter 9 Table 1
EMT must be supported within what distance from an outlet box, junction box,
device box, cabinet, conduit body or other terminations?
A) 3 feet
B) 4 feet
C) 5 feet
D) 6 feet - Answer✔✔-A) 3 feet
Article 358.30 (A)
When a branch circuit feeds both noncontinuous and continuous loads, the
circuit must be sized to accommodate 100% of the noncontinuous load plus
what percent of the continuous load?
A) 110%
B) 115%
C) 120 %
D) 125% - Answer✔✔-D) 125%
Article. 210.20 (A)
What is the allowable Ampacity of a 600 MCM copper conductor type TW?
, A) 300 Amps
B) 350 Amps
C) 355 Amps
D) 400 Amps - Answer✔✔-B) 350 Amps
Table- 310.16
The name given to a system or circuit conductor that is intentionally grounded
is?
A) Grounding Conductor
B) Bonding Conductor
C) High-leg conductor
D) Grounded or neutral conductor - Answer✔✔-D) Grounded or Neutral
Conductor
Article 100 Definitions
The panels of switchboards must be made of?
A) Moisture resistant, noncombustible material
B) Raintight material
C) Impact-resistant material