Mining Engineering > GATE 2023 > Surface Mining
Data related to a surface miner operation are given below -
Drum width (m)=3.0
Average cutting depth (cm)=20
Average cutting speed (m/min)=25
Length of pit (m)=500
Turning time (min)=2
Truck exchange time (s)=30
Truck capacity (m3)=15
Considering in situ volume, the production rate of the surface miner in m3/hr, is ____________. [rounded off to 1 decimal place]
Drum width (m)=3.0
Average cutting depth (cm)=20
Average cutting speed (m/min)=25
Length of pit (m)=500
Turning time (min)=2
Truck exchange time (s)=30
Truck capacity (m3)=15
Considering in situ volume, the production rate of the surface miner in m3/hr, is ____________. [rounded off to 1 decimal place]
Correct : 843.8
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