Tunnelling - Engineering

Q1:

For B.G. single track, the section of the tunnel must have a width

A 4.2 m to 4.5 m

B 4.5 m to 4.8 m

C 4.9 m to 5.5 m

D 5.5 m to 5.8 m

ANS:C - 4.9 m to 5.5 m

No answer description is available.