List of top Mining Engineering Questions asked in TS PGECET

A flat long wall panel is mined out at an area having subsidence factor ‘a’. The measured maximum subsidence on the surface is ‘S’ for a mining height of ‘m’. The subsidence is sub critical, if

Dilatancy of rock is associated with

In RMR, Rock Quality Designation (RQD) 41% to 60% indicates a rock as

The property that cannot be determined from uni-axial compressive strength test of a rock sample fitted with strain gauges is

Given S is the setting load and Y is the yield load of a hydraulic prop, the correct relationship between S and Y is

Which one of the following is the most likely mode of slope failure for waste dump?

Which one of the following supports does not require a power pack for its operation?

Match the following: $$ \begin{array}{ll|l} \text{Instrument} & & \text{Measurement} \\ \hline P & \text{Flat jack} & 1.\ \text{In-situ stress in rock} \\ Q & \text{Borehole deformation gauge} & 2.\ \text{Load} \\ R & \text{Tape extensometer} & 3.\ \text{Bed separation resistance} \\ S & \text{Bore hole penetrometer} & 4.\ \text{Roof convergence} \\ \end{array} $$

The term “bulking factor” refers to

The ratio of specific weight of an intact rock to that of loose rock is called as

Out of the support categories given for an underground coal mine, identify the “active support”

For a cylindrical sample of cross-sectional area $ A $, length $ L $, Young’s modulus $ E $ and axial load $ P $, the strain energy stored is

Poisson’s ratio is the

A multi point borehole extensometer is used to monitor

The angle in degrees at which a ridge line intersects contours is

The basic concept behind GPS is

Every line has two bearings such as fore bearing and back bearing. If fore bearing is less than $180^\circ$, then what will be the back bearing?

One of the tacheometric constants is additive, the other constant is

The length of the tangent of a simple circular curve of radius $R$ and angle of deflection $\Delta$ is given by

If only two members form a truss joint and no external load or support reaction is applied to the joint, then the members

The drivage driven from one coal seam to adjacent coal seam in underground coal mines is called as

The starting point of shaft at the ground surface is called

Insufficient stemming causes

Match correctly for method of drilling given in column A to principle of rock cutting in column B: $$ \begin{array}{ll|l} \text{Column A (Method of drilling)} & & \text{Column B (Principle of rock cutting)} \\ \hline P & \text{Diamond drilling} & 1.\ \text{Impact action} \\ Q & \text{Percussive drilling} & 2.\ \text{Thermal spalling} \\ R & \text{Rotary roller drilling} & 3.\ \text{Rotary abrasive} \\ S & \text{Jet piercing} & 4.\ \text{Cutting \& Ploughing} \\ \end{array} $$

Bauxite is