Drilling and Blasting MCQs Questions & Answers | Mining Engineering

A. Beyond 450 m

B. Beyond 500 m

C. Beyond 600 m

D. Beyond 1000 m

A. Nacl

B. NH₄NO₃

C. NG

D. Charcoal

A. Velocity pressure

B. Static pressure

C. Barometric pressure

D. Mean atomospheric pressure

A. $$A = \frac{{0.385\sqrt Q }}{{\sqrt P }}$$

B. $$A = \frac{{0.395{P^2}}}{{\sqrt Q }}$$

C. $$A = \frac{{0.385Q}}{{\sqrt P }}$$

D. $$A = \frac{{0.485Q}}{{\sqrt P }}$$

A. Belt slip

B. Increase humidity of air

C. Poor blasting efficiency

D. Perform test before dust sparing

A. Time

B. Fresh air base

C. Five

D. All of these

A. Indication stage

B. Incubation state

C. Intermediate stage

D. Open fire

A. Sub Heading

B. Heading

C. Working

D. Header

A. 0.5

B. 0.9

C. 1

D. 2

A. 14.5

B. 15.5

C. 15.6

D. 14.2