Q213
Which equipment is typically used in raise boring?
A.
Jumbo drill
B.
TBM
C.
Reaming head
AnswerD.
Jackleg drill
Answer: Option C
Solution
Answer: Option C
Solution:
Raise boring involves drilling a pilot hole, then using a reaming head.The correct answer is: Reaming headEnlarges hole from bottom to top.Used for ventilation raises and ore passes.