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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-7 section-9

Each section contains 100 MCQs on Drilling and Blasting .
61
The quantity survey can be made in gassy mines of I degree once in every . . . . . . . . days.
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Answer & Solution
Answer: Option C
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62
We understand millisecond as
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Answer & Solution
Answer: Option B
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63
The void formed after extraction of solid block of are called.
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Answer & Solution
Answer: Option B
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64
Moderately deep coal mines lie between.
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Answer & Solution
Answer: Option B
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65
A system of ventilation normally adopted in metal mines is . . . . . . . .
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Answer & Solution
Answer: Option C
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66
In controlled blasting the fly rock should not go height more than . . . . . . . .
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Answer & Solution
Answer: Option A
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67
Quantity of air passing per min at a place given by the formula Q =
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Answer & Solution
Answer: Option C
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68
A gallery which cuts across the pillars, due to its drivage along apparent dip called
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Answer & Solution
Answer: Option A
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69
Speed of coal drill rod.
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Answer & Solution
Answer: Option D
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70
It is a good practice the air velocity not be exceed . . . . . . . . m/sec at the face.
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Answer & Solution
Answer: Option D
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