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Drilling and Blasting MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Drilling and Blasting. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Drilling and Blasting chapter is particularly important for students studying mining engineering. Page-9 section-3

Each section contains 100 MCQs on Drilling and Blasting .
81
Creep is the error associated with
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Answer & Solution
Answer: Option D
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82
Drilling in hard strata generally carried out by using drilling with
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Answer: Option C
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83
The gears of the anemometer can be engaged or disengaged by . . . . . . . .
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Answer: Option D
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84
Very sensitive explosive.
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Answer: Option D
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85
Working place means any place in a mine.
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Answer: Option C
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86
The inflammability of coal dust is dependent upon the percentage of . . . . . . . .
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Answer: Option E
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87
The axial flow fan is fitted with guide blades at the . . . . . . . . side.
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Answer: Option C
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88
Major source of heat in u/g coal mines from
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Answer: Option C
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89
A PETN placed booster in a shot hole occupies only . . . . . . . . of total explosive change.
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Answer: Option D
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90
The maximum height of roadway permitted by law.
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Answer: Option C
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