

MCQOPTIONS
Saved Bookmarks
1. |
When a double ended ranging drum shearer cuts coal in a longwall face, |
A. | both the drums rotate in the same direction keeping the front drum up and the rear drum down |
B. | both the drums rotate in the opposite direction keeping the front drum up and the rear drum down |
C. | both the drums rotate in the opposite direction keeping the front drum down and the rear drum up |
D. | both the drums rotate in the same direction keeping the front drum down and the rear drum up |
Answer» C. both the drums rotate in the opposite direction keeping the front drum down and the rear drum up | |