26208-14 Conductor Terminations and Splices - Quiz (2)

Beschreibung

General Electrician Quiz am 26208-14 Conductor Terminations and Splices - Quiz (2), erstellt von hcannaday am 20/05/2016.
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Quiz von hcannaday, aktualisiert more than 1 year ago
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Zusammenfassung der Ressource

Frage 1

Frage
When used in control cable, which of the following must be grounded in order to be effective?
Antworten
  • Crimp connectors
  • Drain wires
  • Screw terminals
  • Conductors

Frage 2

Frage
When stripping conductors, be sure to _____.
Antworten
  • make a chisel point on the conductor end
  • cut the insulation so that no frayed pieces or threads extend past the point of cutoff
  • retwist and tighten the wire strands
  • use cutting tools with jaws that butt against each other

Frage 3

Frage
A good electrical connection should _____.
Antworten
  • have a resistance of no more than 25 ohms
  • have a resistance of no more than 13 ohms
  • last for approximately 90 days without any maintenance or repairs
  • be mechanically and electrically secure

Frage 4

Frage
How can you determine the wire size that can be used effectively with an insulated barrel crimp connector?
Antworten
  • It is the same as the bolt or screw size permitted.
  • It is referenced by catalog number.
  • It is indicated by the color-coding of the insulation on the connector.
  • It is the largest size of wire you can fit into the barrel.

Frage 5

Frage
Stripped wire should be inserted into the barrel of the terminal until _____.
Antworten
  • the insulation butts against the forward stop
  • the insulation is just inside the barrel
  • 90% of the strands are inside the barrel
  • at least 1/8" of wire extends beyond the inspection hole

Frage 6

Frage
When installing mechanical connectors, which of the following is used to prevent the formation of surface oxides?
Antworten
  • An oxide-neutral joint compound
  • An oxide-promoting joint compound
  • An oxide-inhibiting joint compound
  • An oxide-stabilization joint compound
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