QUESTIONS AND CORRECT DETAILED
ANSWERS|ALREADY GRADED A+
Most common transformer on an industrial site - ANSWER--single
phase step down
applications for heat tracing systems with self regulating control include
those requiring a narrow operating range and - ANSWER--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 - ANSWER--32''
As the mechanical load increases on a squirrel cage induction motor -
ANSWER--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 - ANSWER--cross
sectional areas
Meter used to measure pulling tension - ANSWER--dynamometer
on a push button, normally closed contacts are generally used to open
a circuit to - ANSWER--initiate a stop or off circuit function
, NCCER TEST 2023-2024 ACTUAL EXAM 150
QUESTIONS AND CORRECT DETAILED
ANSWERS|ALREADY GRADED A+
which of the following is the classified location where combustible dust
may be present - ANSWER--class i, division i
which of the following is the classified location where combustible
fibers are always present - ANSWER--Class 3, division ?
Minimum space between 2 ground rods - ANSWER--6ft
how does a battery produce voltage - ANSWER--electromagnetisim
as the load decreases on a squirrel cage induction motor, its power
factor - ANSWER--increases
what size wire is needed for a 120v circuit 215 feet long one way with a
load of 39amps - ANSWER--#6
which of the following conductors has the least resistance - ANSWER--
1/0
what is the primary consideration for selecting a rope for a cable pull -
ANSWER--low stretch
, NCCER TEST 2023-2024 ACTUAL EXAM 150
QUESTIONS AND CORRECT DETAILED
ANSWERS|ALREADY GRADED A+
what is the minimum distance between raceway entries allowed in a
pull box for angle pulls - ANSWER--6x's the largest trade size raceway
45degree offset multiplier - ANSWER--1.41
all of the following are common service voltages in the US except -
ANSWER--372/575 three phase, four wire
Insulation resistance tester - ANSWER--megohmeter
insulation color for barrel crimp connectors for wire sizes 22-16AWG
are - ANSWER--red
when terminating fire alarm, instrumentation or control cables that
contain a shielding drain wire, the drain wire must be - ANSWER--
insulated
to build an offset in a cable tray, use four - ANSWER--swivel plates
a conductor with 220 mils of insulation would have insulation thickness
of - ANSWER--.22''