1. Coal is a ____________ formation

2. Of the given types of geoogical discontinuities and disturbances, ________ are most common in Indian coalfields?

3. RMR stands for ___________________.

4. Number of cutting drums in a SERDS is/are ________.

5. Who frames the Systematic Support Rules for an underground coal mine?

6. Of the given methods of work of underground mining of a coal seam in same geomining conditions, ________________ will cause maximum surface subsidence.

7. Which of the following equipment is most suited for side casting in opencast coal mines ?

8. The first opening cut in an opencast mine is known as ______________.

9. The powder factor in solid blasting in Indian underground coal mines vary from ____________.

10. Burnside drilling apparatus is used for _____________.