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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-6 section-3

Each section contains 100 MCQs on Drilling and Blasting .
51
Capacity of face pump develops head of
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Answer & Solution
Answer: Option B
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52
The percentage of extraction of the depth of seam is 300 m and gallery width 4.2 m
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Answer: Option D
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53
The thickest coal seam in found in . . . . . . . .
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Answer: Option E
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54
It is estimated that in coal mine nearly . . . . . . . . te of air to a sent down in a mine for every te of coal raise.
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Answer: Option A
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55
A place in a mine is not considered to be adequately ventilated if the fire damp percentage exceed . . . . . . . .
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Answer: Option B
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56
The synchronus induction motor has an advance of improving . . . . . . . .
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Answer: Option B
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57
The coefficient of friction measured in Germany . . . . . . . .
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Answer: Option C
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58
Air velocities in diesel locomotive sheds and battery charging station should be not less than . . . . . . . . m/sec.
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Answer: Option B
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59
Unless the two shafts are conected by under ground tunnel, no development work inside the mine is . . . . . . . . under law.
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Answer: Option B
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60
Foam type extinguisher is not permitted to deal with class 'C' fires because
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Answer: Option C
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