91. Every degree of the angle of inclination with the vertical and saving in explosive consumptions.
92. Scrapers are used in coal mines for cutting and transporting the
93. A stripper shovel is modifiction of . . . . . . . .
94. Wagon drill can capable of drill horizontal or inclined holes upto
95. What is the pressure of air in loader tyre.
96. The stripping ratio in semi-mechanised quarrying is . . . . . . . .
97. Rocker shovel run by
98. Motive power of the wagon drill of older type.
99. Hole dia meter of wagon drill ranges from
100. Dozer equipped with fork like arrangement called as . . . . . . . .
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