When compared to copper, the aluminium has _____ of conductivity.
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Electrician
Electrician Set-1
Conductors and Insulation
6
When compared to copper, the aluminium has _____ of conductivity.
60%
60.2%
60.4%
60.6%
Answer is:
60.6%
Explanation:
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Related Conductors and Insulation MCQ - Electrician (Set-1) with Answers
7)
Copper used in electric work should have a very high degree of purity, say
90.9%
95.9%
96.9%
99.9%
Answer
Explanation
Answer is:
99.9%
Explanation:
8)
Which one is NOT an electrical conducting material ?
Copper
Aluminium
Silver
Glass
Answer
Explanation
Answer is:
Glass
Explanation:
9)
Which one of the following is NOT a conductor ?
Silver
Copper
Aluminium
PCV
Answer
Explanation
Answer is:
PCV
Explanation:
10)
The material that contains free electron is
Silver
PVC
Mica
Rubber
Answer
Explanation
Answer is:
Silver
Explanation:
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