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Self-Test 1
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Which term best describes a material that allows electrical energy to pass through it?
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Resister
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Insulator
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Conductor
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Connector
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Which of the following best describes the term
electrical cable
?
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Any wire
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Any insulated wire
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Multiple wires grouped together in a common insulation
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Multiple insulated wires grouped together in a common sheathing
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What is the primary purpose of insulation on wires?
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To protect the wire
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To make installation easier
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To prevent unwanted current flow
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So the wire can be colour coded
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When is stranded wire used?
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On short wires
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When cost is a factor
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On straight runs of wire
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When flexibility is needed
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Wire is sized by gauge: the higher the number, the larger the wire.
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True
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False
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What should be done to stranded wire prior to bending?
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It should be curled.
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It should be tinned.
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It should be wound.
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It should be twisted.
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Solderless connections are more costly than soldering.
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True
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False
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What is one advantage to a twist-on connector?
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It is permanent.
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One size fits all.
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It will not come apart.
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It can be removed easily.
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It doesn’t matter what material the conductor is made from when making a connection.
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True
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False
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What type of connector should be used to create a permanent splice?
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Twist
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Winged
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Crimp-on
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Set screw