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Introduction to Mining Engineering MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Introduction to Mining Engineering. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Introduction to Mining Engineering chapter is particularly important for students studying mining engineering. Page-6 section-4

Each section contains 100 MCQs on Introduction to Mining Engineering .
51
The ratio of weight per unit volume of solid rock mass in the bench and weight per unit volume of loose rock mass after blasting or loosening is called
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Answer & Solution
Answer: Option D
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52
It is the mining method in which masses, panels or block of ore are undercut to induce caving, permitting the broken ore to be drawn off below
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Answer & Solution
Answer: Option B
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53
Risk of premature collapse and over-ridding of pillars are maximum with
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Answer: Option C
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54
Danger of air blast is maximum with
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Answer: Option C
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55
In a coal mine the depth of working is 200 m from surface, width of galleries 3 m, height of galleries 3 m and distance of square pillars between centres of bords is 22.5 m. What is strength of the pillar
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Answer: Option D
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56
A surface mine blast design has 9 holes in a row, each of 8 m length and 200 mm diameter. The spacing and burden are 6 m and 5 m respectively. The length of subgrade drilling is 1 m and the density of in-situ rock is 2.43 t/m3. Assuming no back break, the output per blast in t is
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Answer: Option A
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57
Wagon drill working at minimum compressed air pressure of
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Answer: Option A
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58
It is a solid block of coal surrounded on all its side by galleries. Identify it
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Answer: Option C
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59
Crown Pillar is
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Answer: Option A
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60
Apart from mining of coal, the longwall mining method has been practiced for mining the deposits of
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Answer: Option D
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