IEC YEAR 3 FINAL EXAM NEWEST
ACTUAL EXAM QUESTIONS WITH
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) | ALREADY
GRADED A+ 2024-2025
A dual-voltage motor was connected to a low-voltage
circuit. Later, the circuit was replaced with a high-voltage
circuit. After the motor was reconnected to the circuit, the
line current ___.
Select one:
a. has not changed
b. is now lower
c. is now high Correct Answer is now lower
A dual-voltage motor was connected to a low voltage
circuit. Later, the circuit was replaced with a high-voltage
circuit. After the motor was reconnected to the circuit, the
current through each motor winding ___.
Select one:
a. has not changed
b. is now lower
c. is now higher Correct Answer has not changed
The windings of 230/460-volt, dual-voltage, wye-wound
motors are connected in ___ when the supply circuit is
480 volts.
,Select one:
a. series
b. parallel Correct Answer series
Correct rotation of a 3-phase motor will always be
achieved if AΦ is connected to T1, BΦ is connected to T2,
and CΦ is connected to T3.
Select one:
a. True
b. False Correct Answer False
Dual-voltage, wye-wound, 9lead motors ___ be field-
connected in delta.
Select one:
a. can
b. cannot Correct Answer cannot
Nine-lead 3Φ motors are usually internally (factory)
connected as either a ___ configuration.
Select one:
a. series or parallel
b. delta or wye
c. start or stop
d. torque or wound Correct Answer delta or wye
,All solvent waste, oily rags, and ___ shall be kept in a fire-
resistant covered containers until removed from the
worksite.
Select one:
a. paper
b. flammable liquid
c. scrap wood
d. all of these Correct Answer flammable liquid
Whenever materials are dropped more than 20 feet at any
point lying outside the exterior walls of the building, a(n)
___ is required.
Select one:
a. enclosed chute
b. hand truck
c. dumpster
d. elevator Correct Answer enclosed chute
Lumber shall be stacked on a level surface so that the4
stack is ___.
Select one:
a. stable
b. self-supporting
c. both a and b Correct Answer stable and self-supporting
Stored bricks shall not be stacked more than ___ feet
high.
, Select one:
a. 16
b. 20
c. 3
d. 7 Correct Answer 7
Structual steal, pipes, poles,. bar stock, and other ___
materials, unless racked, shall be stacked and blocked so
as to prevent spreading or tilting.
Select one:
a. flat
b. triangular
c. rectangular
d. hex-shaped
e. square
d. cylindrical Correct Answer cylindrical
For any debris dropped through floors without the use of
chutes, the area onto which the material is dropped shall
be barricaded to a height of not less than ___ inches and
6 feet back from the opening.
Select one:
a. 72
b. 96
c. 60
d. 42 Correct Answer 42
All materials stores in tiers shall be stacked, racked,
blocked, interlocked, or otherwise secured to prevent ___.
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