GATE 2026 MN – Question 55
Wagons8 m long,3 m wide and3 m high move at0.4 km/h under a silo, with1 m gaps. Filling stops between wagons. At fill factor0.95 and coal density1.2 tonne/m³, find average loading rate in tonne/hour, nearest integer.
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Correct answer: 3640 to 3660
Explanation
Each wagon receives8×3×3×0.95×1.2=82.08 tonnes. The moving pitch is8+1=9 m, so400 m/hour brings400/9 wagons/hour. Average rate=82.08×400/9=3648 tonne/hour. Including the gaps accounts for the intervals with discharge stopped.