Drilling and Blasting MCQs Questions & Answers | Mining Engineering

A. Junctions

B. Haulage roads

C. Travelling roads

D. Seats of aevon

A. 20%

B. 30%

C. 35%

D. 40%

A. Plain detonators

B. Electric short delay detonators

C. Ordinary long delay detonators

D. Seismic detonators

A. Benzene

B. Tolune

C. Potasium Nitrate

D. Nitric

A. $$\frac{{{\text{Brake HP}}}}{{{\text{air HP}}}}$$

B. $$\frac{{{\text{air HP}}}}{{{\text{Break HP}}}}$$

C. $$\frac{{{\text{HP of ventilation}}}}{{{\text{HP input}}}}$$

D. 3m

A. 1000 - 1500

B. 2500 - 5000

C. 6000 - 8000

D. 5000 - 6000

A. Production of coal

B. Man power employed

C. Cooling power

D. All

A. MNCl₂

B. Soda phosphate

C. CaCl₂

D. NHCl₂

A. $$\frac{{{\text{Perimeter}}}}{{{{{\text{(Area)}}}^{\frac{1}{2}}}}}$$

B. $$\frac{{{\text{Perimeter}}}}{{{\text{Area}}}}$$

C. $$\frac{{{\text{Perimeter}}}}{{{{{\text{(Area)}}}^{\frac{1}{3}}}}}$$

D. $$\frac{{{\text{Perimeter}}}}{{{{{\text{(Area)}}}^{\frac{1}{4}}}}}$$

A. 2

B. 4

C. 8

D. 16