Drilling and Blasting MCQs Questions & Answers | Mining Engineering

A. High

B. Medium

C. Medium

D. Low

A. Detonation

B. Deflection

C. Wave

D. Burning

A. CO₂

B. H₂

C. N₂

D. O₂

A. Upcast

B. DC shaft

C. Air shaft

D. Middle

A. $$\left[ {\frac{{100}}{{\frac{{{P_1}}}{{{N_1}}} - \frac{{{P_2}}}{{{N_2}}} - \frac{{{P_3}}}{{{N_3}}}}}} \right]\% $$

B. $$\left[ {\frac{{100}}{{\frac{{{P_1}}}{{{N_1}}} + \frac{{{P_2}}}{{{N_2}}} + \frac{{{P_3}}}{{{N_3}}}}}} \right]\% $$

C. $$\left[ {\frac{{100}}{{\frac{{{N_1}}}{{{P_1}}} - \frac{{{N_2}}}{{{P_2}}} - \frac{{{N_3}}}{{{P_3}}}}}} \right]\% $$

D. $$\left[ {\frac{{100}}{{\frac{{{P_1}}}{{{N_1}}} + \frac{{{N_2}}}{{{P_2}}} + \frac{{{N_3}}}{{{P_3}}}}}} \right]\% $$

A. Side

B. Middle

C. Bottom

D. All of these

A. Runing tippler

B. Travelling tippler

C. Siding tippler

D. Turning tippler

A. VOD

B. Density

C. Strength

D. Sensitivety

A. 0.27 N sec²m^-8

B. 0.03 N sec²m^-8

C. 0.0033 N sec²m^-8

D. 0.01 N sec²m^-8

A. Primary

B. Backlash

C. Shock

D. All of these