Question

A long wall face cut by double back shuffle method can be only worked with

• A. Fixed drum shearer
• B. Single ended ranging drum shearer
• C. Double ended ranging drum shearer
• D. Plough

Hint:

Double ended ranging drum shearers are preferred in longwall mining for their ability to cut in both directions, making them suitable for methods like double back shuffle.

Answer 1

The Correct Option is C

The double back shuffle method in longwall mining involves cutting the coal face in a specific pattern that requires a shearer to operate in both directions along the face. A double ended ranging drum shearer, which has cutting drums on both ends and can adjust its height, is ideal for this method as it can cut efficiently in both directions. Fixed drum shearers and single ended shearers lack the versatility needed, and a plough is typically used for thinner seams, not suited for this method.
Thus, the correct answer is Double ended ranging drum shearer.