QUESTION ONE

a$)$ Define a mine raise and mention the two common methods of developing a raise with examples. $2$ marks

b$)$ What are the four main uses of a mine raise? $4$ marks

c$)$ Explain in detail the method constructing a mine raise by ladders with platforms? $14$ marks

$[20$ marks$].$

QUESTION THREE

a$)$ Define a decline? $2$ marks

b$)$ Mention five design parameters used in the design of a decline? $5$ marks

c$)$ State four advantages and four disadvantages of a decline? $8$ marks