ELMC Master Electrician Code 251-275| Questions with Complete Solutions 100% Verified|
Latest Update Graded A+
A non locking disconnect for 480 volt motor controller must be visible from the controller and
within a maximum of how far from the controller?
a. 50 feet
b. 6 feet
c. 15 feet
d. 30 feet 50 feet
430-102 to Definitions 100 (insight) NEC 2005, 2008, 2011
In a hermetic refrigerant motor compressor, the ampere rating shall be ________ percent of
the nameplate rated load current.
a. 100
b. 10
c. 120
d. 115 115
NFPA 70 : NEC 2017 : 2008 : 440.12.A.1
Transformers and capacitors filled with flammable liquid installed in a class I Division I area
needs to be in ________.
a. a wooden box
b. a vault
c. a fenced area
d. surrounded by earthen berm a vault
, NEC 2008 501.100.1
At what HP should a continuous duty motor be protected against overloads?
a. more than 2 HP
b. more than 1 HP
c. More than 3 HP
d. More than 5 HP More than 1 HP
NEC 2005 430.32.A
Fourteen (14) current carrying conductors are in an 80 foot conduit run operating at 28 degrees
C or 82 degrees F. Each conductor shall be derated to what percentage of its' original ampacity?
a. 70%
b. 80%
c. 60%
d. 50% 50%
NFPA 70 : NEC 2011 : 310.15.B.2.a
A metal raceway system is installed in the washing area of a car wash. What minimum distance
from the surface must the raceway be mounted?
a. 1 inch
b. 1/4 inch
c. 1/2 inch
d. 3/4 inch 1/4 inch
Latest Update Graded A+
A non locking disconnect for 480 volt motor controller must be visible from the controller and
within a maximum of how far from the controller?
a. 50 feet
b. 6 feet
c. 15 feet
d. 30 feet 50 feet
430-102 to Definitions 100 (insight) NEC 2005, 2008, 2011
In a hermetic refrigerant motor compressor, the ampere rating shall be ________ percent of
the nameplate rated load current.
a. 100
b. 10
c. 120
d. 115 115
NFPA 70 : NEC 2017 : 2008 : 440.12.A.1
Transformers and capacitors filled with flammable liquid installed in a class I Division I area
needs to be in ________.
a. a wooden box
b. a vault
c. a fenced area
d. surrounded by earthen berm a vault
, NEC 2008 501.100.1
At what HP should a continuous duty motor be protected against overloads?
a. more than 2 HP
b. more than 1 HP
c. More than 3 HP
d. More than 5 HP More than 1 HP
NEC 2005 430.32.A
Fourteen (14) current carrying conductors are in an 80 foot conduit run operating at 28 degrees
C or 82 degrees F. Each conductor shall be derated to what percentage of its' original ampacity?
a. 70%
b. 80%
c. 60%
d. 50% 50%
NFPA 70 : NEC 2011 : 310.15.B.2.a
A metal raceway system is installed in the washing area of a car wash. What minimum distance
from the surface must the raceway be mounted?
a. 1 inch
b. 1/4 inch
c. 1/2 inch
d. 3/4 inch 1/4 inch
