GATE MN case studies
GATE MN · Put your knowledge to work in context.
GATE Mining Engineering (MN) is one of the 30 test papers in the Graduate Aptitude Test in Engineering, a national-level examination that the source describes as testing comprehensive understanding of undergraduate subjects in Engineering, Technology, Architecture, Science, Commerce, Arts and Humanities. GATE 2025 is organised by IIT Roorkee on behalf of the National Coordination Board – GATE, Department of Higher Education, Ministry of Education, and is delivered as a computer-based test. The GATE MN case studies are 5 cases and about 2,628 words.
1Bord-and-pillar pillar distress at a goaf edge under a seasonal stream
A bord-and-pillar coal mine operates at 320 m depth in a flat seam 2.6 m thick. Development uses 28 m square pillars with 5.0 m galleries.
579 words, about 3 min2Longwall methane limit before a production increase
A longwall coal face 220 m wide and 2.8 m high produces 5,000 t/d. Methane emission from the seam and goaf is 4.5 m3 per tonne of coal mined.
498 words, about 2 min3Open-pit slope with a daylighting fault and water pressure
An iron ore open pit is 150 m deep with 12 m benches. In a 60 m high lower sector, the overall slope angle is 52°.
534 words, about 3 min4Blast vibration compliance near a village
A limestone quarry blasts 12 m benches with 115 mm holes at 3.0 m burden and 3.5 m spacing. Each hole contains 35 kg of explosive.
448 words, about 2 min5Coal washery operating point under a tightening ash contract
A coal washery treats 100 t/h of raw coal at 30% ash. Plant trials give three steady operating points: A, a 15% ash product at 55% yield; B, an 18% ash product at 65% yield; C, a 22% ash product at 75% yield.
569 words, about 3 min