Q186
Which support type applies compressive force to resist rock movement?
A.
Rock bolt
B.
Shotcrete
C.
Hydraulic prop
AnswerD.
Chain link mesh
Answer: Option C
Solution
Answer: Option C
Solution:
Hydraulic props offer active support using fluid pressure.The correct answer is: Hydraulic propCommonly used in longwall mining to support advancing face.Can be adjusted and reused.