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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-5 section-3

Each section contains 100 MCQs on Drilling and Blasting .
41
The shaft should reach nearly . . . . . . . . m below the lowest bed to be worked to acommodates cheese weights of guide ropes.
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Answer & Solution
Answer: Option E
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42
At the inlet of the mine roadway, the dry and wet bulb temperature of air are 38°C and 29°C, respectively. The corresponding temperatures at the outlet are 32°C and 29°C respectively. The process of heat transfer in the air way is described as . . . . . . . .
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Answer & Solution
Answer: Option A
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43
Term mine car used for tubs capacity more than, having ball bearings for mine car.
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Answer & Solution
Answer: Option B
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44
The factors have to be considered before selecting the site of shaft the site.
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Answer & Solution
Answer: Option E
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45
Heavy barriers used at
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Answer & Solution
Answer: Option B
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46
In thick seams the thickness of coal in between.
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Answer & Solution
Answer: Option C
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47
Booster having VOD of
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Answer & Solution
Answer: Option C
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48
The disadvantage of incline is . . . . . . . .
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Answer & Solution
Answer: Option B
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49
The permitted explosive used in underground in solid blasting of all gassy mins.
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Answer & Solution
Answer: Option C
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50
Sometimes a rod or chisel breaks in the drill hole during drilling. Name the device that may be used to catch the broken piece
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Answer & Solution
Answer: Option A
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