IEC Year 2 Exam 2024 | IEC Exam Update
Latest 2024 Questions and Correct
Answers Rated A+
Which of the following installations are NOT covered by the NEC?
-Bolivar ferry boats
-Sprint towers used for cell phone signal transmission
-Southwest Airlines Jets such as 737's
-Reliant/HLandP power lines and equipment located in property
easements along streets -ANSWER-None of the above
A continuous load is any load that operates for _______. -ANSWER-3
hours or more
The water pump motor for a coin-operated car wash would be
considered to be a _____ load. -ANSWER-noncontinuous
Improper electrical terminations lead to increased _____.
-A. Circuit resistance
-B. voltage dropped across the terminations
-C. Circuit current -ANSWER-a and b only
When setting the range on a DMM for a voltage measurement, if the
expected voltage to be measured is 480 volts DC, the range setting
should be set on_____. -ANSWER-600v---
A DMM is set for a voltage measurement and the range is set to 200v.
If the voltage to be measured is 277 volts, the LCD will display_____. -
ANSWER-OL
,Safety toe footwear for employees shall meet the requirements and
the specifications of _____. -ANSWER-ANSI
The maximum permissible noise exposure level, at 97 db, is _____
hours. -ANSWER-3
Employees whose vision requires use of corrective lenses in
spectacles shall be provided with eye protection in the form of _____.
-A. optically corrected spectacles.
-B. over-spectacle-type goggles
- C. goggles with corrective lenses -ANSWER-any of these
There are ____ chapters in the 2004 edition of the NFPA 70E. -
ANSWER-4
When working on live or energized equipment, conductive _____ is
permitted to be worn.
- A. jewelry
-B. clothing -ANSWER-neither a or b
Employees shall maintain any saftey data sheets (SDS) for hazardous
_____. -ANSWER-chemicals
The chemical distributor, manufacturer, or importer shall ensure that
each container of hazardous chemical leaving the workplace has the
identity of the hazardous chemical _______.
-A. labeled
-.B tagged
-C. marked -ANSWER-any of these
,Employers shall provide employees with _____ information and
training on hazardous chemicals in the work area at the time of their
initial assignment. -ANSWER-effective
Where one or more complete paragraphs from the previous edition of
the NRC have been deleted in the current edition, the deletion is
identified by ____ between the remaining paragraphs. -ANSWER-a
bullet
Where used in the NEC, the term shall not indicate that an actions is
_____, An example of this usage appears below.
210.9 Circuits Derived from autotransformers. Branch circuits shall not
be derived from auto transformers unless the circuit supplied has a
grounded conductor that is electrically connected to a grounded
conductor of the system supplying the auto transformer.
-A.mandatory
-B. permitted
-C. allowed but not required -ANSWER-mandatory
Annex H in the NEC _____.
-A. is to be used for information only unless specifically adopted by the
local AHJ
-B. contains requirments to be applied to all articles. -ANSWER-A
______ equipment is constructed so that water ( in the form of
moisture) will not enter it. -ANSWER-Watertight
The ampacity of an insulated conductor is ____. -ANSWER-the
maximum amount of current it can carry continuously without damage
to the insulation.
-Equipment 1- Operates for 3 hours, 20 minutes each time it is started.
, -Equipment 2- Operates for 1 hour, 15 minutes each time it is started.
-Equipment 3- Operates for 45 seconds each time it is started.
Equipment 2, shown above , is a continuous load. T/F -ANSWER-
False
A motor and the disconnecting means (safety switch) are located on
opposite sides of a wall. Because the 8" concrete block wall separates
two rooms, the two equipments are seperated by this 8". The motor
and controller ____ considered to be within sight ( of eachother) per
the NEC. ARE/ARE NOT -ANSWER-are not
Where circuit breaker terminals or safety switch lugs are marked on
the equipment ( or included with installation instructions ) with a
tightening torque by the manufacturer, this torque is required to be
applied to the connections. T/F -ANSWER-True
Refer to the drawing shown below. Which phase conductor is required
to be identified as the "high-leg"? -ANSWER-
The NEC permits the insulation for an ungrounded conductor to be
____ in color.
-orange
-black
-brown
-yellow -ANSWER-any of these
How many 20-amp kitchen countertop receptacle circuits are required
in a restaurant? -ANSWER-0
"Unless noted otherwise" and "Unless Otherwise Noted" are notations
used on construction drawings. These abbreviated UNO and UON,
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