Q39
What is the main disadvantage of block caving?
A.
Low production rate
B.
High ore dilution
AnswerC.
High cost per ton
D.
Needs selective mining
Answer: Option B
Solution
Answer: Option B
Solution:
Ore dilution is the major concern in block caving.The correct answer is: High ore dilutionAs the rock caves, waste rock can mix with ore, reducing grade.Though cost-effective for large volumes, it lacks selectivity.