List of top Mining Engineering Questions

Acid Mine Drainage (AMD) is mainly caused due to oxidation of
The Gaussian plume model is primarily used to estimate
Resuing stoping method is adopted when the ore body is
For O.B. removal with shovel, the optimum size of the dumper depends on
Pocket and wing technique of pillar extraction is related to
The process of treating holes with chemicals in the cementation method is called
Axial thrust in a turbine pump acts
Depending upon the decreasing ability of surrounding rock to store strain energy in underground metal mining methods can be ordered as
A twin cable ropeway consists of
In Koepe winding, the overwind is prevented by
When a double-ended ranging drum shearer cuts coal in a longwall face,
The strength of standard wire rope is proportional to
The 'ratchet and pawl' mechanism in a jack hammer drill
Emulsion explosive is a mixture of
A low-grade steep-seated ore body dipping at \(70^\circ\) has a strike length of \(2\ \text{km}\) and width \(100\ \text{m}\). The ore body and wall rocks are weak and fractured. The preferred method of mining is
In a cut-and-fill stope, the main purpose of backfilling is to
In a belt conveyor system, the function of the snub pulley is to
Economic depth of surface mining primarily depends on
For highwall mining, web pillar design is governed mainly by
The factor of safety of a coal pillar decreases with
The equipment used for both drop cut and terrace cut in surface mining is
Post-pillar method of stoping is a variant of
A cylindrical sample of cross-sectional area \(A\), length \(L\), and Young's modulus \(E\) is subjected to a constant uniaxial load \(P\). Within the elastic limit, the expression for the total strain energy \((U)\) stored in the sample is
A borehole log of \(1.2\ \text{m}\) in length has recovered rock cores of lengths \(20,\ 8,\ 15,\ 8,\ 8,\ 4,\ 3,\ 9,\ 10,\ 1,\ 5,\) and \(10\ \text{cm}\). The RQD (in percentage) is
What is the formula for Factor of Safety?