The recommended rate of change of grade for second class railways per 20-m distance at sages is
A. 0.12%
B. 0.1%
C. 0.8%
D. 0.06%
Answer:D
The recommended rate of change of grade for second class railways per 20-m distance at sages is
A. 0.12% B. 0.1% C. 0.8% D. 0.06%