Related Questions

Which one of the following linings is suitable for shield driven tunnels particularly in the sub-aqueous regions?
A Brick lining
B Stone lining
C Timber line
D Cast iron lining
A pipe is generally made of circular cross-section, because a circular cross-section has the
A Higher structural strength
B Lowest surface area requirement for a given volume
C Both A & B
D None of these
Which of the following lining material is useful for shield driven tunnels in sub aqueous regions?
A Stone masonry
B Timber
C Cast iron
D Cement concrete
Which of the following methods of tunneling is used for long tunnels at great depths?
A Army method
B Needle beam method
C Austrian method
D English method
The tunnels, the artificial underground passages are constructed for:
A Highways
B Railways
C Sewerage
D All the above
Railway tunnels are generally
A Polycentric
B Rectangular
C Parabolic
D Circular
The method of draining in the tunnels, is generally known as
A Foredrainage
B Dewatering
C Permanent drainage
D All of the above
In the wooded bulk-head, used for mucking in steep grade tunnels,
A One opening is provided
B Two openings are provided
C Three openings are provided
D No opening is provided
Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than
A 2 m
B 3 m
C 4 m
D 5 m
The advantages of providing a pair of tunnels as compared to only one large highway tunnel is:
A Economy in cost of construction
B Avoidance of head on collisions
C Provision of separate exit and entrance of two traffic streams
D All the above

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