Select the correct option to test your answer:
More Mining Engineering Questions
Hydrogenation first achieved by the scientist
A competent person shall inspect the top of all entrances of a mine once at least in every . . . . . . . . days.
A line joining two stations which is used to locate details, for away from the main line is called . . . . . . . .
An explosive used in underground mines has to be
H 2 found in u/g . . . . . . . . places.