GATE GE case studies

GATE GE · Put your knowledge to work in context.

GATE 2025 (Graduate Aptitude Test in Engineering) is a national-level examination that primarily tests the comprehensive understanding of various undergraduate subjects in Engineering, Technology, Architecture, Science, Commerce, Arts, and Humanities. It is organised by Indian Institute of Technology Roorkee (IITR) and conducted by IISc Bengaluru and seven IITs - IIT Bombay, IIT Delhi, IIT Guwahati, IIT Kanpur, IIT Kharagpur, IIT Madras and IIT Roorkee - on behalf of the National Coordination Board (NCB), Department of Higher Education, Ministry of Education, Government of India. The GATE GE case studies are 5 cases and about 4,075 words.

Network RTK Heighting for a Floodplain Corridor: Does the Error Budget Close?

A district survey office must map a 14 km × 9 km floodplain corridor for a 1:1000 topographic model with 0.10 m contours. The contract defines this as vertical RMSE ≤ 25 mm at 95% confidence.

872 words, about 4 min 2

UAV Photogrammetry for a 1:500 Site Plan: Feasibility and Vertical Accuracy

A 0.54 km² site (900 m × 600 m) comprising a gravel pit and surrounding scrub must be mapped for a 1:500 plan with a contract limit of RMSEz ≤ 0.040 m. The UAV carries a 20 MP camera (5472 × 3648 px, 2.4 µm pixel pitch, 24 mm lens) flown at 120 m AGL with 80% forward overlap and 60% sidelap.

848 words, about 4 min 3

Cadastral Migration: Scale Factor, Area and a Conflicting Monument

A municipality is migrating 4,800 cadastral parcels (mean 0.80 ha, total 3,840 ha) from a local Transverse Mercator grid into a national UTM zone. The parcels lie up to 42 km from the central meridian at a mean orthometric height of 620 m.

681 words, about 3 min 4

Sentinel-2 Land-Cover Map: Accuracy Assessment and Corrected Area Estimation

A regional authority is mapping built-up expansion over a 1,000 km² jurisdiction using Sentinel-2 at 10 m. Between 2019 and 2024 the classified map reports built-up 210 km², cropland 640 km² and water 150 km².

849 words, about 4 min 5

Leveling Link for Settlement Monitoring: Closing the Loop on a Systematic Misclosure

A 12 km leveling link between two national benchmarks is run with a digital level and invar staffs to provide vertical control for embankment settlement monitoring on a new rail line. BM-A has an adopted height of 24.316 m and BM-B of 31.902 m; the measured height difference is +7.604 m.

825 words, about 4 min