Drilling and Blasting MCQs Questions & Answers | Mining Engineering

A. P₁ explosives

B. P₂ explosives

C. P₃ explosives

D. P₄ explosives

E. P₅ explosives

A. Smoke and cloud method

B. Pitot tube

C. Hot wire anemometer

D. Tracer method

A. To starve it of oxygen

B. Cut of power supply

C. Built stopping

D. Explosion proof stoping

A. 40%

B. 50%

C. 64%

D. 75%

A. $$H = \frac{{{U^2}}}{g}$$

B. $$H = \frac{{U\left( {U - V\cot \theta } \right)}}{g}$$

C. $$H = \frac{{U\left( {U + V\cot \theta } \right)}}{g}$$

D. None

A. Negative

B. Positive

C. Vibrative

D. More

A. wedge cut

B. fan cut

C. drag cut

D. bum cut

A. Dry properties

B. Gas resistance properties

C. Water resistance properties

D. Sensitive properties

A. 3024

B. 1024

C. 2050

D. 4000

A. 6

B. 8

C. 9

D. 11