Testing and Commissioning of Electrical Equipments (2180901) MCQs
MCQs of Safety Management
| 81. |
The process of connecting non-current-carrying metal parts (i.e. metallic enclosure) of the electrical equipment to earth (i.e. soil) in such a way that in case of insulation failure, the enclosure effectively remains at earth potential is called ____________________________ .
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Answer:
Option (a) |
| 82. |
The process of connecting some electrical part of the power system (e.g. neutral point of a star connected system, one conductor of the secondary of a transformer etc.) to earth (i.e. soil) is called_______________ .
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Answer:
Option (b) |
| 83. |
__________ is known as connecting the metallic parts of different machines which is not considered to be carrying electric current during normal operation of the machines to bring them at the same level of electric potential.
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Answer:
Option (d) |
| 84. |
Which is the following are the Types of Earthing?
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Answer:
Option (d) |
| 85. |
What is the specification of GI earth plate?
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Answer:
Option (d) |
| 86. |
What is the amount of charcoal and salt needed for GI Pipe earthing?
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Answer:
Option (c) |
| 87. |
What type of earthing is used by transmission lines?
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Answer:
Option (c) |
| 88. |
Which type of earthing is also called as ‘fire earthing’?
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Answer:
Option (b) |
| 89. |
The size of the earth or ground wire is based on the
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Answer:
Option (d) |
| 90. |
Which colour wire is recommended for earth connection as per ISI code ?
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Answer:
Option (b) |
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