Types of Electrical Wires Exam Questions With Verified Answers.
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Course
Electrical Wiring
Institution
Electrical Wiring
Types of Electrical Wires Exam Questions
With Verified Answers.
Stranded - answerA collection of smaller wires twisted around a solid
core
Concentric - answerOne wire surrounded by six wires
Compact Concentric - answerLike Concentric wire but crushed together leaving space
Bunched - answerVer...
Types of Electrical Wires Exam Questions
With Verified Answers.
Stranded - answer✔A collection of smaller wires twisted around a solid
core
Concentric - answer✔One wire surrounded by six wires
Compact Concentric - answer✔Like Concentric wire but crushed together leaving space
Bunched - answer✔Very small strands together forming a very flexible cord
Rope - answer✔several concentric cables twisted together with rubber sheathing
Insulators - answer✔preventing unwanted current flow
Enamel - answer✔A magnet wire
Varnish Cambric - answer✔lead covered cable
Thermoplastic - answer✔Identified flame test is that it should self extinguish. Examples: PVC (Polyvinyl
chloride)
PVC Types - answer✔Types: T- dry type, TW- wet or dry, TWU wet, dry or underground
Softens at 150 C
XLPE - answer✔Cross-linked polyurethane
Minerals for High Temp Insulation - answer✔Mica, Asbestos, Magnesium oxide and Pyrotenax
Colour Coding Wire - answer✔Hots- Red, Black
Neutral (Grounded or Identified)- White or Grey
Bond/Ground- Green
Other Hots- Blue, Yellow, red and Orange
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