NCCER Test Questions and Answers
100% Pass
A UL listed rod type ground electrode must have minimum length of ✔✔8''
in a circuit of pure capacitance, the current leads the voltage by ✔✔90 degrees
The standard unit for measuring the cross sectional area of wire is the ✔✔circular mil
the drawing scale is most likely to be found in the ✔✔drawing title block
what is the minimum number of overload sensing units required for all three phase motors ✔✔3
what is the resultant distance between center bends for a 10-inch offset at 15 degrees ✔✔38.7
inches
What is the symbol for the secondary side of a transformer ✔✔x
, Most common transformer on an industrial site ✔✔single phase step down
applications for heat tracing systems with self regulating control include those requiring a narrow
operating range and ✔✔temperature sensitive fluids
with a row of 3-4'', 3-2'' and 1-1'' conduits on each side for a straight pullbox what is the
minimum distance between the opposite side walls of the box ✔✔32''
As the mechanical load increases on a squirrel cage induction motor ✔✔torque decreases and
stator current increases
when installing cables smaller the 4/0 in cable tray, the allowable cable fill area must not be less
than the sum of the cable ✔✔cross sectional areas
Meter used to measure pulling tension ✔✔dynamometer
on a push button, normally closed contacts are generally used to open a circuit to ✔✔initiate a
stop or off circuit function
100% Pass
A UL listed rod type ground electrode must have minimum length of ✔✔8''
in a circuit of pure capacitance, the current leads the voltage by ✔✔90 degrees
The standard unit for measuring the cross sectional area of wire is the ✔✔circular mil
the drawing scale is most likely to be found in the ✔✔drawing title block
what is the minimum number of overload sensing units required for all three phase motors ✔✔3
what is the resultant distance between center bends for a 10-inch offset at 15 degrees ✔✔38.7
inches
What is the symbol for the secondary side of a transformer ✔✔x
, Most common transformer on an industrial site ✔✔single phase step down
applications for heat tracing systems with self regulating control include those requiring a narrow
operating range and ✔✔temperature sensitive fluids
with a row of 3-4'', 3-2'' and 1-1'' conduits on each side for a straight pullbox what is the
minimum distance between the opposite side walls of the box ✔✔32''
As the mechanical load increases on a squirrel cage induction motor ✔✔torque decreases and
stator current increases
when installing cables smaller the 4/0 in cable tray, the allowable cable fill area must not be less
than the sum of the cable ✔✔cross sectional areas
Meter used to measure pulling tension ✔✔dynamometer
on a push button, normally closed contacts are generally used to open a circuit to ✔✔initiate a
stop or off circuit function
