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81
What is the maximum period of service expected from all parts of suspension gear as per CMR 2017?
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Answer: Option D
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82
It may be sufficient to provide one rescue room for a number of mines, if the total number of persons ordinarily employed in below ground working of all such mines does not exceed,
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Answer: Option B
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83
If the ventilation door to be frequently kept open for the passage of men/material, those shall be through at the working shift, a . . . . . . . . at the door.
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Answer: Option B
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84
No oil, grease, canvas or other inflammable material shall be stored on any mine except in a . . . . . . . . receptacle.
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Answer: Option B
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85
What temperature of the socket is suitable for pouring white metal into it?
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Answer: Option A
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86
Detonetor once inserted into a . . . . . . . . cartridge shall not be taken at
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Answer: Option C
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87
Detonators are to be carried in
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Answer: Option C
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88
Number of shots fired at anyone time by the apparatus shall not exceed the number for which it is . . . . . . . .
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Answer: Option B
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89
The production of dust can be reduced by using . . . . . . . . type of bits.
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Answer: Option C
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90
The samples are called by a method of . . . . . . . . sampling, when the zone treated with incombustible dust.
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Answer: Option D
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