TRANSMISSION AND DISTRIBUTION - Practice Mode

1) Which electric lines connect the substation to distributors in distribution system?

Feeders Distributors Service lines Service mains

Correct Answer: Feeders

Explanation:

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2) What is the insulation resistance between any two conductors in a medium voltage domestic installation as per IE rules?

Infinity More than one Mega ohm More than two Mega ohms More than three Mega ohms

Correct Answer: More than one Mega ohm

3) What is the voltage ratio in A.C distribution line adopted for domestic consumers?

415 V/240 V 240 V/110 V 415 V/110 V 11 KV/415 V

Correct Answer: 415 V/240 V

4) Which is the permissible load for lighting sub circuit in domestic wiring as per IE rules?

800 W 1200 W 2400 W 3000 W

Correct Answer: 800 W

5) What is the reason for the conductor cross- sectional area can fully utilised on transmission of DC as compared to AC?

No heat loss No skin effect No power loss No corona loss

Correct Answer: No skin effect

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