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Free download in PDF Mining Engineering General Knowledge Multiple Choice Questions(MCQs) & Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(1)
When the material collected to represent a rock type, or a formation or an ore body in the quantitative sense then it is termed as:
[A]
Specimen
[B]
Sample
[C]
Both specimen and sample can be used
[D]
Quantitative specimen
(2)
Drift mining is generally employed:
[A]
For the underground mining
[B]
For coal mining
[C]
ln the exploitation of placers
[D]
In the exploitation of copper ore
Answer: ln the exploitation of placers
(3)
Horizon mining for coal winning is more suitable where:
[A]
The coal seams are horizontal
[B]
The coal seams are highly disturbed
[C]
The coal seams are slightly dipping
[D]
The coal seams are found above the earth’s surface
Answer: The coal seams are found above the earth’s surface
(4)
The mining methods adopted in Rakha copper mine:
[A]
Cut and fill method
[B]
Room and pillar method.
[C]
Post and pillar method
[D]
All the above
(5)
Long wall method is:
[A]
Generally applicable to thin coal seams
[B]
Applied to deep mining
[C]
Applicable to thick coal seams
[D]
Applied to very deep mining and thick coal seams
Answer: Generally applicable to thin coal seams
(6)
The width of the ore body which can be economically mined is:
[A]
Stopping width.
[B]
Assay width.
[C]
Actual width.
[D]
Grady width.
(7)
Long wall method is generally employed for:
[A]
Copper ore mining.
[B]
lron ore mining.
[C]
Coal mining.
[D]
Gypsum mining.
(8)
Choose the most suitable answer for Gathering:
[A]
lt is a opencast mining method.
[B]
lt is a underground mining method.
[C]
lt is a mining method, which is used for coal winning.
[D]
lt is a underground mining method used for small rich ore bodies.
Answer: lt is a underground mining method used for small rich ore bodies.
(9)
Strip mining is a method of:
[A]
Underground mining.
[B]
Opencast mining with a high degree of mechanization.
[C]
Horizon mining.
[D]
Long wall mining.
Answer: Opencast mining with a high degree of mechanization.
(10)
Minimum metal percentage, at which mining is profitable, is known as:
[A]
Average grade.
[B]
Cut off grade.
[C]
Mill grade.
[D]
Economical grade.
(11)
The openings in the mini, which serve as a means of entry is known as:
[A]
Shafts.
[B]
Edits
[C]
Cross cut.
[D]
Stop.
(12)
Snake holes are:
[A]
Vertically drilled holes.
[B]
More of less horizontally drilled holes at the foot of a high bench.
[C]
Inclined drilling holes.
[D]
Vertically drilled holes with two lateral openings.
Answer: More of less horizontally drilled holes at the foot of a high bench.
(13)
The mining terminology, exploitation or winning is:
[A]
The process of blasting.
[B]
The process of extracting the ore or economic mineral from the earth.
[C]
The process of ventilation.
[D]
The detailed mapping of the ore body.
Answer: The process of extracting the ore or economic mineral from the earth.
(14)
Blasting gelatin is made up of:
[A]
Nitroglycerine and ammonium nitrate.
[B]
Nitroglycerine and sodium nitrate.
[C]
Nitroglycerine and guncotton.
[D]
Nitroglycerine only.
Answer: Nitroglycerine and guncotton.
(15)
The drill holes which are driven vertically and make the sides of the excavation are Described as:
[A]
Easers.
[B]
Simpers.
[C]
Dressers.
[D]
Hole directors.
(16)
High explosives containing:
[A]
Nitroglycerine.
[B]
Sodium nitrate.
[C]
Ammonium nitrate.
[D]
Charcoal sulphur.
Answer: Ammonium nitrate.
(17)
"Salting" of an ore is done:
[A]
By adding common salts.
[B]
By removing salt form the ore.
[C]
By mixing substances for increasing the values in the ore sample.
[D]
By mixing substances for lowering the values in the ore samples.
Answer: By adding common salts.
(18)
The grade which is available from a property after actual mining is:
[A]
Computed grade.
[B]
Effective grade.
[C]
Run - of - mine grade.
[D]
Pit head grade.
(19)
The spacing of the trenches pits and boreholes depend on:
[A]
The length of the ore body.
[B]
The modes of occurrence of the deposits.
[C]
The depth of the deposits.
[D]
The outcrops of the deposits.
Answer: The modes of occurrence of the deposits.
(20)
Grab sampling consists in:
[A]
Picking pieces of ore at one place only.
[B]
Picking pieces of ore at random to make up a sample.
[C]
Picking pieces of coal only.
[D]
Picking pieces of ore in a grid fashion.
Answer: Picking pieces of ore at random to make up a sample.
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