ITI MCQ
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WIRING INSTALLATION AND EARTHING - Practice Mode
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Electrician
WIRING INSTALLATION AND EARTHING
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1) Why system earthing is different in utilization than equipment earthing?
It protects human only
It protects from all circuit faults
It is associated with current carrying
It is connected to the non current carrying metal work
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Correct Answer: It is associated with current carrying
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1) Why system earthing is different in utilization than equipment earthing?
It protects human only
It protects from all circuit faults
It is associated with current carrying
It is connected to the non current carrying metal work
2) What is the effect if a person receives a shock current of 20 mA?
No sensation
Painful shock
Heart convulsions
Become unconscious
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Correct Answer: Painful shock
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2) What is the effect if a person receives a shock current of 20 mA?
No sensation
Painful shock
Heart convulsions
Become unconscious
3) Which electrical equipment L series type MCB's are used?
Geysers
Locomotives
Halogen lamps
Air conditioners
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Correct Answer: Geysers
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3) Which electrical equipment L series type MCB's are used?
Geysers
Locomotives
Halogen lamps
Air conditioners
4) What is the megger reading in a dead short wiring installation?
0 M Ohm
1 M Ohm
500 M Ohm
Infinity
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Correct Answer: 0 M Ohm
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4) What is the megger reading in a dead short wiring installation?
0 M Ohm
1 M Ohm
500 M Ohm
Infinity
5) What is the advantage of crimping?
Gives neat apperance
Reduce load current
Avoid loose connections
Easy to replace
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Correct Answer: Avoid loose connections
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5) What is the advantage of crimping?
Gives neat apperance
Reduce load current
Avoid loose connections
Easy to replace
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