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EWRB (Electrical Engineering) JOB INFORMATION QUESTIONS AND ANSWERS.
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EWRB (Electrical Engineering) JOB INFORMATION QUESTIONS AND ANSWERS.
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EWRB (Electrical Engineering) JOBINFORMATION QUESTIONS AND ANSWERS.
The most basic division of wire and cable technology is made on the
basis of __________________.
Correct Answer -voltage
when installing aluminum conductors inside a structure, it must be the
_________ series alloy.
Correct Answer -8,000
non-metallic sheathed cable ampacity is limited to ____________
temperature rating.
Correct Answer -60 degrees Celsius
Application for type _____________ conductors include:
1. Residential
2. Indoor (dry location) and outdoor (wet location) installation
3. Above ground installations only
Correct Answer -SE
_________________-drawn copper conductors have the lowest
conductivity and highest resistivity.
Correct Answer -Hard
Lay length impacts the _________ and _____________ of a conductor
Correct Answer -weight and DC resistance
,Manufacturers refer to number 14, 12, and 10 AWG size conductors as
___________ size conductors.
Correct Answer -circuit
medium-voltage insulated conductor ____________ types include cross-
linked polyethylene (XPLE) and ethylene propylene rubber (EPR)
Correct Answer -insulation
Which type of armored cable is listed under UL 4, which is a prescriptive
standard, with permitted conductor sizes of 14 AWG through 1 AWG
only?
Correct Answer -AC
Type AC armored cable must be secured every ? .
Correct Answer -4.5 feet
which of the following describes a conductor with the product description
of 10-19 SD CU THHN-THWN 2?
Correct Answer -19 AWG with 10 strands, soft copper conductor
Steel will start losing strength at 500F and will hold about 50% of its
strength until what temperature?
Correct Answer -1200F
Structural steel beams are rolled while they are _______________
Correct Answer -hot
Interior partition walls are built with lighter-weight ____________ studs
Correct Answer -25 gauge
, Concrete blocks are classified by the weight of the concrete mix. How
many classifications are there?
Correct Answer -3
In concrete frame construction, the beams, columns and floor are
monolithic, meaning that the concrete is poured for all of them at the
same time. This is done so all parts act in unison. T/F?
Correct Answer -True
Mortar is a binding material made with ______________, sand, lime, and
water.
Correct Answer -Portland Cement
Which of the following is NOT an advantage of building with concrete?
Correct Answer -Tensile and shear strength
Which of the following is NOT a fundamental kind of stress a building
material is subjected to?
Correct Answer -Friction
The primary load-bearing portions of a concrete frame constructed
building are called ____________________/
Correct Answer -Columns
Which of the following construction materials is renewable, is recyclable,
and reduces the carbon footprint?
Correct Answer -Wood
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