BASICS OF AC AND ELECTRICAL CABLES - Practice Mode

1) Which electrical property opposes the flow of electrons?

Power Voltage Current Resistance

Correct Answer: Resistance

2) How the single strand wire is called?

Hook - up wire Twisted wire Flexible wire Multistrand wire

Correct Answer: Hook - up wire

3) What is the percentage of conductivity of electric current in copper?

0.56 0.67 0.94 1

Correct Answer: 0.94

4) How many gauge numbers in SWG, changed to double the cross section area of the conductor?

Two gauge sizes decreased Four gauge sizes increased Five gauge sizes increased Three gauge sizes decreased

Correct Answer: Three gauge sizes decreased

5) What are the fundamental properties of insulation materials?

Length and cross sectional area Low resistance and thermal heat Temperature and electrical hazards Insulation resistance and dielectric strength

Correct Answer: Insulation resistance and dielectric strength

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