Module 26208-20 Study Guide

A good electrical connection should _____

• last as long as the conductor is in service

• be replaced every year

• be loose to allow movement

• overheat during use

A TRUE statement concerning solid versus stranded conductors is _____

• the diameters are different

• the materials are always different

• solid conductors are always more flexible

• stranded conductors have lower resistance than solid ones

Connectors designed for use with aluminum have _____

• tin plating

• copper coating

• silver finish

• zinc alloy

How can you determine the wire size that can be used effectively with an insulated barrel crimp connector?

• It is indicated by the color-coding of the insulation on the connector.

• By the length of the connector barrel.

• By the material of the wire only.

• By the shape of the connector terminal.

Larger conductors such as power cable can be cut using _____

• ratchet-type cable cutters

• needle-nose pliers

• screwdrivers

• wire strippers

Stub connections are used _____

• where there is insufficient room to make an inline connection

• to increase the current carrying capacity of a wire

• for decorative purposes in wiring

• to reduce the resistance of a circuit

The best electrical tape to use as a protective overwrap on high-voltage cable is _____

• high-temperature silicone rubber tape

• vinyl electrical tape

• cloth friction tape

• polyester film tape

The type of heat-shrink tubing that provides a high temperature rating and is considered to be the best overall in terms of physical, electrical, and chemical protection is _____

• Teflon®

• Polyolefin

• PVC

• Neoprene

The type of tape that would MOST likely be used on a furnace or oven control is _____

• glass cloth tape

• duct tape

• masking tape

• electrical tape

To position cable so that it is not under tension, it is necessary to _____.

• train conductors

• tighten the insulation

• increase the voltage

• reduce the cable length