Select the correct option to test your answer:
More Mining Engineering Questions
Raise driving by use of jora hoist to drive mechanised raising upto . . . . . . . . m long raises.
Tail gate supported by hydraulic props with 'I' section channel bars upto . . . . . . . . from face.
Output of light lumens and the life of the bulb in hours of old ham cap lamp respectively is . . . . . . . .
In coal mines low velocities of air dangerous in the point.
Identify the figure