GATE MN 2026 Paper 1 — page 19

Questions 55–57 of 65. Imported answers require review unless explicitly marked reviewed.

A rake of wagons, with inter-wagon gap of 100 cm, is moving at a speed of 0.4 km per hour under a silo loading system. The dimensions of the wagon are 8 m (L) × 3 m (W) × 3 m (H). The silo stops discharging the material between the wagons. Considering the fill factor of the wagon as 0.95 and the bulk density of coal as 1.2 tonne per cubic meter, the loading rate of the silo, in tonne per hour, is ____________. (rounded off to nearest integer)

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A turbine pump is designed to generate water head of 60 m. The impeller speed of the pump is 2000 rpm and the manometric efficiency is 70%. Neglecting the impeller blade curvature, the impeller diameter of the pump, in cm, is _____________. (rounded off to two decimal places)

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The information for a dragline operation is given:

Bucket capacity: 20 m

Bucket fill factor: 0.9

Digging and filling time: 20 s

Swinging (to and fro) time: 32 s

Dumping time: 10 s

Dragline utilization: 90%

The output of the dragline, in m

, is ________. (rounded off to one decimal place)

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2026 · Paper 1

Question 55

Question 56

Question 57