Q34
Which of the following is used to control dust in underground mines?
A.
Rock bolts
B.
Shotcrete
C.
Water sprays
AnswerD.
Conveyor belts
Answer: Option C
Solution
Answer: Option C
Solution:
Water sprays are used to suppress dust at sources.The correct answer is: Water spraysThey reduce airborne particles during drilling, blasting, and loading.Rock bolts and shotcrete stabilize rock; conveyors transport ore.