GATE Mining Engineering (MN) Previous Year Question Paper 2015
Graduate Aptitude Test in Engineering (GATE) 2015 Mining Engineering (MN) Previous year question paper with answers GATE Mining Engineering (MN) 2015 Question with solution you can download it in FREE, if GATE Mining Engineering (MN) 2015 paper in text or pdf for GATE Mining Engineering (MN) 2015 Answer Keys you can download GATE 2015 page also just Go to menu bar, Click on File->then Save.
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GATE Mining Engineering (M9) Question Papers 2015
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GATE Mining Engineering (MN) Question Paper 2015 Download PDF File:
1. Out of the support categories given for an underground coal mine, identify the ‘active support’.
- (A) wire mesh
- (B) shotcrete
- (C) fully grouted roof bolt
- (D) hydraulic prop
2. Massive sandstone in immediate roof delays the local fall in goaf of a coal mine. Under this condition, crushing of the pillars at outbye side is called
- (A) coal bump
- (B) overriding of pillars
- (C) stiffening of pillars
- (D) spalling of pillars
3. The angle in degrees at which a ridge line intersects contours is
- (A) 0
- (B) 30
- (C) 45
- (D) 90
4. In a drum hoisting system through a vertical shaft, overwinding is prevented by
- (A) Lilly controller
- (B) detaching hook
- (C) caliper brake
- (D) safety catch
5. The temperature of a parcel of air decreases from 30.2oC to 28.9oC as it rises from an altitude of 20 m to 120 m. The lapse rate for the atmosphere is
- (A) subadiabatic
- (B) adiabatic
- (C) superadiabatic
- (D) transadiabatic
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