List of top Mining Engineering Questions

A rock specimen was tested under compression. The lateral and longitudinal strains were found to be \(0.8\%\) and \(4\%\) respectively. The Poisson's ratio of the specimen is
The load at which an axially loaded prop reaches its elastic limit or at which it begins to buckle is called
If the rock has RMR value \(72\), then what will be its roof classification?
An area of \(100\,\text{m}^2\) is measured on a plan having an R.F. of \(\dfrac{1}{800}\). If the R.F. were changed to \(\dfrac{1}{2000}\), the area on the new plan in \(\text{m}^2\) would be
Random errors are best minimized by
The magnetic bearing of a line AB is \(S\,32^\circ E\) and the magnetic declination is \(4^\circ E\). What is the true bearing of the line AB?
A transition curve is provided to
The load on a prop when the upper member is beginning to slide is called
In a Mohr--Coulomb failure criterion, the ratio of the uniaxial compressive strength to the tensile strength is
In the etch method, the acid used to measure borehole deviation is
Identify the correction to departure of any side in traversing.
Which drilling method is most commonly used in underground metal mines?
In opencast blasting, delay detonators are used to
The term “Powder Factor” refers to
In the freezing method of shaft sinking, the cooling liquid used for circulation is
The texture of igneous rocks depends mainly on
The mineral commonly used in the manufacture of cement is
Which rock is a sedimentary rock?
Schist is a metamorphic rock characterized by
The example for foliated metamorphic rock is
In CPM method of network analysis the Critical activities are associated with
Which one of the following is a principle of TQM ?
In a PERT network for an activity Pessimistic, Most likely, and Optimistic times are 8 days, 6 days and 4 days respectively. The expected duration of the activity is _______
For a person working in Opencast mine the rate at which leave with wages calculated is
The time by which activity completion time can be delayed without affecting start of succeeding activity