Select the correct option to test your answer:
More Mining Engineering Questions
The uni-axial compressive strength and modulus of elasticity of a rock sample are 90 MPa and 30 GPa respectively. The stored strain energy per unit volume in kN.m/m 3 of the sample at the time of failure is
The chain conveyor is actuated by two . . . . . . . . motors in AM 50 continuous miner.
UHV range of G grade coal in KCal/kg.
The self advancing supports are used in coal mines on prop free front long wall faces and are introduced in India in . . . . . . . . colliery.
In an opencast mine loading and transporting has been carried out by shovel dumper combination. There is only one shovel is in operation. Dumpers arrive at the rate of 10 dumpers per hour and it takes shovel on an average 5 minutes to load a dumper. Assume arrival is Poisson and service time is exponentially distributed, find the expected number of dumpers waiting to be load in the system.