Mine Supports and Strata Control MCQs Questions & Answers | Mining Engineering

A. 210 mm

B. 250 mm

C. 280 mm

D. 310 mm

A. Load on breaker line props

B. Closer between roof and floor

C. Induced stress in pillars

D. Instiu stress in mines

A. Harmonic Mining

B. Long wall Mining

C. High wall Mining

D. B.G Mining

A. Prop which is so set that its axis is in between vertical and normal to seam

B. Prop tightned from bottom

C. Prop less than 1.5 m length

D. Prop which does not take lead, it was supposed to take

A. Blue

B. Read

C. Green

D. Brown

A. Beam theory

B. Key stone theory

C. Suspension theory

D. All of these

A. Slot and wedge

B. Expansion shall

C. Perfo type

D. Bamboo types

E. All of these

A. 10 cm

B. 20 cm

C. 25 cm

D. 30 cm

A. Even fracture

B. Uneven fracture

C. Coin chodia fracture

D. Hackley fracture

A. 20

B. 30

C. 13

D. 35