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Q) In restricted earth neutral system of power supply for voltage exceeding 1.1 KV (1100 Volts) & up to 11 KV in O/C mines should be limited?

  1. 750 mill ampere
  2. 50 mill ampere
  3. 75 mill ampere
  4. 50 ampere
  5. 5 ampere
Solution

Q) Where a fault including an earth fault current shall not be more than________________in installation of voltage exceeding_____________?

  1. 650 mill ampere/250 volts
  2. 550 mill ampere/250 volts
  3. 750 mill ampere/200 volts
  4. 750 mill ampere/250 volts
Solution

Q) Plans (CEAR 2010) showing on scale?

  1. 1:4000 (25 cm to a km)
  2. 1:2000 (21 cm to a km)
  3. 1:4000 (50 cm to a km)
  4. 1:3000 (25 cm to a km)
Solution

Q) Plans (CEAR 2010) showing?

  1. Position of all fixed apparatus
  2. Conductors
  3. Telecommunication / Signalling apparatus / Cables
  4. All of the above
  5. B & C
  6. A & C
Solution

Q) Voltage exceeding 33 KV the clearance above ground should not be less than ______for every__________volts provided that the minimum clearance along/across any street shall not be less than 6.1 m?

  1. 1m+0.3m / 33000 Volts
  2. 2m+0.5m / 3300 Volts
  3. 2m+0.3m / 33000 Volts
  4. 1m+0.3m / 11000 Volts
Solution

Q) Voltage exceeding 11000 volts but not exceeding 33 KV?

  1. Elsewhere Along/Across 4.6 m
  2. Elsewhere Along/Across 4.0 m
  3. Elsewhere Along/Across 5.2 m
  4. Elsewhere Along/Across 6.5 m
Solution

Q) Voltage up to 11000 volts if Bar.

  1. Elsewhere Along/Across 4.6 m
  2. Elsewhere Along/Across 4.0 m
  3. Elsewhere Along/Across 6.5 m
  4. Elsewhere Along/Across 5.2 m
Solution

Q) Voltage up to 11000 volts if Insulated.

  1. Elsewhere Along/Across 5.2 m
  2. Elsewhere Along/Across 4.0 m
  3. Elsewhere Along/Across 4.6 m
  4. Elsewhere Along/Across 6.5 m
Solution

Q) Voltage Exceeding 650 volts but Not Exceeding 33 KV.

  1.  Across street 5.8 m / Along street 4.6 m
  2. Across street 5.2 m / Along street 6.1 m
  3. Across street 6.1 m / Along street 5.8 m
  4. Across street 6.1 m / Along street 4.6 m
Solution

Q) Distance between any two consecutive bonds is not more than________measured along either cable?

  1. 20 m
  2. 15 m
  3. 50 m
  4. 30 m
Solution

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