Drilling and Blasting MCQs Questions & Answers | Mining Engineering

A. $$A = \frac{{1.2P}}{{\sqrt Q }}$$

B. $$A = \frac{{1.2Q}}{{\sqrt P }}$$

C. $$A = \frac{{1.2}}{{\sqrt R }}$$

D. $$A = \frac{{1.8}}{{{R^2}}}$$

A. Hanging wall

B. Drift

C. Footwall

D. Foot step

A. Jig machine

B. Vortex machine

C. Cyclone separator

D. Electrostatic diffusion

A. Avger mining

B. Horizon mining

C. Bell pit mining

D. Harmonic mining

A. Carbonation

B. Oxydation

C. Absorbition

D. Adhesion

A. 60 - 1000 m/min

B. 0 - 500 m/min

C. 0 - 800 m/min

D. 25 - 900 m/min

A. gun powder + LOX

B. OCG + ANFO

C. soligex, unigex

D. SG 80%

A. 1 - 2%

B. 2 - 3%

C. 15 - 20%

D. 30 - 40%

A. 200; 200

B. 300; 150

C. 100; 200

D. All of these

A. primary blasting

B. secondary blasting

C. muffling

D. clay capping