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Shock and Short-Circuit Prevention

Why are electrical wires used with proper insulation in lighting circuits of houses?
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Answer & Explanation
Correct AnswerD. To prevent electric shock and short circuits

Quick Explanation

Insulation separates live conductors from people, other conductors and conductive building parts. This reduces accidental contact, leakage and conductor-to-conductor faults, preventing electric shock and short circuits.

Shock and Short-Circuit Prevention explanatory diagram

Detailed Explanation

Correct Answer

D — To prevent electric shock and short circuits

Explanation

Insulation separates live conductors from people, other conductors and conductive building parts. This reduces accidental contact, leakage and conductor-to-conductor faults, preventing electric shock and short circuits.

Key Concept

Shock and Short-Circuit Prevention

Exam Point

Insulation's safety job: keep live metal isolated.

Quick Trick

Insulation's safety job: keep live metal isolated.

Exam Tip

Insulation's safety job: keep live metal isolated.

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