Select the correct option to test your answer:
More Mining Engineering Questions
As per Circular which of the following flaw detectors is required to have been owned by the manufacturer in connection with CSG?
Chaining across a high compound wall is a example for . . . . . . . .
An underground panel extracted in a coal mine has a strike length of 500 m. After subsidence survey, it was found that the length of a straight line between the extreme limits of the subsided area on surface is 593.2 m along the strike direction. The depth of the extracted panel from the surface is 100 m. The angle of draw for the overlying strata assuming identical subsidence on either side of the centre of the panel is
The person in each inhalation inspires about . . . . . . . . litres of air of which he consumes about . . . . . . . . cc of oxygen so that with breaths per min.
In sampling, a part is collected to represent the total set of observation. Use any single word from the following to replace "total set of observation"