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WorksheetsConductor Terminations & Splices
Total questions: 20
Worksheet time: 10mins
Which of the following eliminates the need for taping and the use of filler tape?
Motor connection kit
Parallel-tap connector
Al-cu
Heat-shrink insulator
The NEC section that governs electrical connections and splices is _____.
NEC section 110.14
Nec table 312.4
Nec section 110.19
Nec section 110.13
When installing mechanical connectors, which of the following is used to prevent the formation of surface oxides?
High temp silicone rubber
Motor connection kit
An oxide-inhibiting joint compound
In a straight line
Which of the following inscriptions on a wire connector indicates that it is designed for use on both copper and aluminum wire?
Fe-cu
Ch3oh
AL-CU
Cu-cu
When used in control cable, which of the following must be grounded in order to be effective?
Screw terminals
Crimp connectors
Copper conductors
Drain wires
Stripped wire should be inserted into the barrel of the crimper until _____.
Refer to the manufacturer literature
In a straight line
The insulation butts against the foward stop
The diameters are different
A good electrical connection should ____.
Refer to the manufacturer literature
Be mechanically and electrically secure
In a straight line
Slip the insulator over the connector and apply heat for a few seconds
The best electrical tape to use as a pretective overwrap on high-voltage cables is _____.
High temp silicone rubber
Copper conductors
Drain wires
An oxide-inhibiting joint compound
A true statement concerning solid versus stranded conductors is _____.
The insulation butts against the foward stop
There is no difference in the two types
The diameters are different
Strain relief and much protection
To position cable so that it is not under tension, it is necessary to _____.
Motor connection kit
Train conductors
Drain wires
Copper conductors
When stripping conductors, be sure to _____.
It is indicated by the color-coding of the insulation on the connector
Cut the insulation so that no frayed pieces or threads extend past the point of cut off
Slip the insulator over the connector and apply heat for a few seconds
The insulation butts against the foward stop
Wire connectors marked only with the wire size should only be used on _____.
High temp silicone rubber
Copper conductors
Nec section 110.14
Drain wires
Heat-shrink insulators are intented to provide _____.
The diameters are different
Train conductors
Strain relief and much protection
Drain wires
How should terminal space be measured from the end of the lug or wire connector?
Drain wires
In a straight line
Clearly identified
To the left
To determine the correct connector size for MC cable, _____.
The diameters are different
Drain wires
Refer to the manufacturer literature
Only one end is typically grounded
Before a splice or connection can be made to a Type THHN conductor, the _____.
The insulation butts against the foward stop
Conductor ends must be stripped and cleaned
Length must be measured
Ends should be wrapped with thhn tape
How can you determine the wire size that can be used effectively with an insulated barrel crimp connector?
An oxide-inhibiting joint compound
It is indicated by the color-coding of the insulation on the connector
In a straight line
Slip the insulator over the connector and apply heat for a few seconds
Which of the following is true of drain wires in fire alarm and instrumentation cable?
In a straight line
They should be taped back on both ends
Only one end is typically grounded
They should be twisted
Burnishes, nicks, and scrapes are generally the result of which of the following?
In a straight line
Poorly stripped conductors
Train conductors
Mechanical vibration
To properly install heat-shrink insulators, _____.
The insulation butts against the foward stop
Slip the insulator over the connector and apply heat for a few seconds
Cut the insulation so that no frayed pieces or threads extend past the point of cut off
Strain relief and much protection
