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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-4 section-2

Each section contains 100 MCQs on Introduction to Mining Engineering .
31
Advance supporting of 30 m at both the gate roads is required due to
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Answer & Solution
Answer: Option A
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32
A 15 m3 dragline is deployed in an O.B. bench of an O.C. mine. It works for 40 days at the rate of 6 hrs per shift and 3 shifts a day. The cycle time, bucket fill factor, and operating efficiency of the dragline are respectively 50 s, 0.8, and 75%. The total volume of O.B. in m3 handled by the dragline is
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Answer & Solution
Answer: Option D
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33
Mine life time should be calculated based on
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Answer & Solution
Answer: Option B
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34
No mode or type of Capping shall be used which fails to withstand a load of atleast "N" times the maximum static load. N is given by
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Answer & Solution
Answer: Option D
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35
Over 80% of underground coal production in India comes from
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Answer & Solution
Answer: Option C
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36
The following data are provided for a surface mine to be excavated by a shovel:
Production target : 10000 te/shift
Available hours per shift : 6 hrs
Shovel loading cycles per hour : 106
Bank density of the material mined : 2400 kg/m3
Swing factor at 120° swing : 0.91
Bucket fill factor : 0.64
Utilization of available time : 83%
No of working days in a year : 300
No of shifts per day : 3
The annual production target in Mte is
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Answer & Solution
Answer: Option D
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37
Select the correct order with respect to the core sizes
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Answer & Solution
Answer: Option B
Solution:
The correct answer is Option B: NX > BX > AX > EX.
Here's why:
These codes (NX, BX, AX, EX) refer to standard core sizes used in core drilling during mineral exploration and geotechnical investigations.
They represent the diameter of the rock core retrieved from the drill hole.
The letters are in a roughly descending order of size.
* NX core is the largest of the given options.
* BX core is smaller than NX.
* AX core is smaller than BX.
* EX core is the smallest of the given options.
Therefore, the correct order from largest to smallest core size is NX > BX > AX > EX.
38
A non-electric detonating relay does not contain
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Answer & Solution
Answer: Option C
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39
Which of the following sampling technique is followed during sampling from wagons or dumps in the form of scoop taken at regular intervals?
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Answer & Solution
Answer: Option D
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40
Value of Bulking Factor is
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Answer & Solution
Answer: Option D
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