Subtotal $=35$ Marks

QUESTION $2$

$2\mathrm{.}1$ Though there are many variations in design, continuous miners $($CM$)$ mostly consist of five main elements. Recommend five main design elements of a continuous miner $($Any $5).$

$2\mathrm{.}2$ Shafts are required for providing access to the coal seam for men, materials and services, for bringing out coal and for providing ventilation. Suggest four different categories of inclined shafts.

$2\mathrm{.}3$ The shaft collar is the uppermost portion of the shaft. Briefly discuss two methods used during collar establishment.

Subtotal $=15$ Marks