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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-10 section-6

Each section contains 100 MCQs on Drilling and Blasting .
91
In this stage of self heating, the petrol like odour comes.
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
92
The gas which accumulates at the roof level below the fire stopping is
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Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
93
Which is the deepest under ground coal mine in India.
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Answer & Solution
Answer: Option B
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94
The amount of stone dust deposited in the each shell of light weight barrier.
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Answer & Solution
Answer: Option C
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95
P - V curve showing the relationship between fan drift w.g and . . . . . . . .
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Answer & Solution
Answer: Option A
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96
The presence in the air of fine dry coal dust lower the lower limit of explosibility of methane air mixture to well below the usual . . . . . . . .%.
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Answer & Solution
Answer: Option D
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97
If the fire involves inflammable liquids comes under
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Answer & Solution
Answer: Option B
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98
Amount of explosive to be charged in a single shot hole is not dependent on
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Answer: Option D
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99
Explosives grouped in . . . . . . . . types depending upon the speed which explosive effects produced.
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Answer & Solution
Answer: Option A
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100
The rescue apparatus smoke helmet (or) hose mask for use at a place of irrespirable air, which is not far from an area of fresh air, upto about . . . . . . . .m.
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board