- 10000 volts/6600 volts
- 12000 volts/6500 volts
- 15000 volts/6300 volts
- 11000 volts/6600 volts
- None of these
- 120 dB (A)
- 130 dB (A)
- 140 dB (A)
- 115 dB (A)
- 90 dB (A)
- 85 dB (A)
Q) Voltage limit? Electricity shall not be transmitted into a mine at a voltage exceeding__________& shall not be used at voltage exceeding___________?
Solution:
Electricity shall not be transmitted into a mine at a voltage exceeding 11000 Volts & shall not be used at voltage exceeding 6600 Volts.
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