List of top Questions asked in TS PGECET- 2026

Pocket and wing technique of pillar extraction is related to

Resuing stoping method is adopted when the ore body is

Axial thrust in a turbine pump acts

In Koepe winding, the overwind is prevented by

When a double-ended ranging drum shearer cuts coal in a longwall face,

Depending upon the decreasing ability of surrounding rock to store strain energy in underground metal mining methods can be ordered as

The process of treating holes with chemicals in the cementation method is called

A twin cable ropeway consists of

In a cut-and-fill stope, the main purpose of backfilling is to

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

The 'ratchet and pawl' mechanism in a jack hammer drill

The strength of standard wire rope is proportional to

In a belt conveyor system, the function of the snub pulley is to

Emulsion explosive is a mixture of

For highwall mining, web pillar design is governed mainly by

Economic depth of surface mining primarily depends on

Post-pillar method of stoping is a variant of

The equipment used for both drop cut and terrace cut in surface mining is

The factor of safety of a coal pillar decreases with

Which one of the following ropes cannot be an effective cable bolt?

A multi-point borehole extensometer is used to monitor

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?

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