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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-2 section-9

Each section contains 100 MCQs on Drilling and Blasting .
11
The formule for finding blade tip speed.
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Answer & Solution
Answer: Option D
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12
The life of exhaust fan is . . . . . . . . compared to forcing fan.
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Answer & Solution
Answer: Option A
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13
A person doing normal work (not heavy works) breaths at a rate of nearly . . . . . . . . breaths per minute.
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Answer: Option B
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14
O2 cylinder capacity with O2 at 200 kg/cm2 . . . . . . . . litters in BG 174.
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Answer & Solution
Answer: Option D
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15
Distance between two air lock doors should not be less than.
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Answer & Solution
Answer: Option A
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16
The minimum insulation resistance of high power cable is . . . . . . . .
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Answer: Option B
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17
It is one of the oldest drilling technologies where hole is drilled by striking a number of blows at short intervals on the rock by a chisel type tool and between the blows the tool is rotated. The drilling is called
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Answer & Solution
Answer: Option B
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18
In which of the following drilling method causes less bit wear.
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Answer: Option B
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19
The charge per hole in the blasting gallery method is . . . . . . . .
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Answer & Solution
Answer: Option D
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20
The detonator used in electrical storms where static electricity is there
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Answer & Solution
Answer: Option A
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