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21
Abbrevation form of CMPDIL
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Answer: Option A
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22
The immediate roof is called
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Answer: Option B
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23
Cavability of a roof bed in a long wall panel is affect by its
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Answer: Option E
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24
For testing a specimen in laboratory length's diameter ratio should be
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Answer: Option C
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25
The resistance which a body offers to being pulled asending by tensile force is called
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Answer: Option D
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26
The load on a prop when upper member is begins to sliders called
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Answer: Option C
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27
Fracture in blast hole is due to
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Answer: Option A
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28
Schmidi Hammer rebound test is carried out in rock for determining.
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Answer: Option B
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29
One of the first culliery power station was installed in the year
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Answer: Option B
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30
Gypsum deposit is
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Answer: Option C
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