Mining Engineering > GATE 2022 > Mine Transportation
In a small metal mine a battery powered locomotive hauls a train of mine tubs such that:
The weight of the train of mine tubs, tonne: 3.0
The coefficient of friction between the wheels and the rails: 0.06
The coefficient of adhesion between the loco wheels and the rails: 0.2
Time required from the start to reach speed of 1.8 m/s through constant acceleration, min: 3.0
Upward gradient to be negotiated: 1 in 20
The minimum weight of the locomotive in tonnes to meet these design requirements, is _________. (round off to one decimal place)
The weight of the train of mine tubs, tonne: 3.0
The coefficient of friction between the wheels and the rails: 0.06
The coefficient of adhesion between the loco wheels and the rails: 0.2
Time required from the start to reach speed of 1.8 m/s through constant acceleration, min: 3.0
Upward gradient to be negotiated: 1 in 20
The minimum weight of the locomotive in tonnes to meet these design requirements, is _________. (round off to one decimal place)
Correct : 3.7
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