Q203
Which of the following techniques is used to ensure controlled rock fragmentation?
A.
Backfilling
B.
Blasting pattern design
AnswerC.
Timber setting
D.
Water pumping
Answer: Option B
Solution
Answer: Option B
Solution:
Blasting pattern design involves planning hole spacing and charge size.The correct answer is: Blasting pattern designControls fragmentation size, safety, and wall stability.Essential for production and development blasts.