Q167
What is an advantage of a spiral ramp over a vertical shaft?
A.
Faster development
B.
Lower initial capital cost
AnswerC.
Higher hoisting capacity
D.
Better for deep deposits
Answer: Option B
Solution
Answer: Option B
Solution:
Spiral ramps are inclined tunnels used for vehicular access.The correct answer is: Lower initial capital costCheaper to construct than shafts, though slower for deep ore bodies.Suited for shallow to moderate depths.