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More Mining Engineering Questions
If the measured length of line is more than actual length, the sign of the error is . . . . . . . .
Best method of mining in seam of 8.5 m thick.
If the travel of persons is arduous a suitable man riding system shall be provided, when the incline is more than . . . . . . . . kilometer in length (one way).
The self rescuer can be used for . . . . . . . . hours.
If it is found that a younger bed completely covers up and advances much beyondthe limits of the underlying beds then the structure is called