A. carrying water
B. non-cohesive soils
C. tunnels driven by shield method
D. placement of concrete lining
Related Mcqs:
- The correct sequence of drilling equipment for increasing size of holes in tunnels is________________?
A. wagon drill, churn drill, shot drill
B. wagon drill, shot drill, churn drill
C. shot drill, churn drill, wagon drill
D. churn drill, wagon drill, shot drill - 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 - Drift method of tunnelling is used to construct tunnels in__________________?
A. soft grounds
B. rock
C. self supporting grounds
D. broken grounds - 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 - If ‘N’ is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are_________________________?
A. 2N
B. N + 2
C. 2 N + 1
D. 2 N + 2 - In “full face” method of constructing tunnels, the first operation relates to______________?
A. removal of bottom portion
B. excavation of one drift in the centre
C. removal of top portion
D. excavation being done along the periphery - The most suitable soil for compressed air tunneling is________________?
A. silt
B. sand
C. clay
D. gravel - In the construction of Metro Railways, “Cut and Cover” method of construction is suitable in situations listed at________________?
Consider the following situations
1. Soil is soft
2. Volume of existing surface traffic on the alignment is heavy
3. Track is at a deeper level
4. Water table is highA. 1 and 2
B. 1 and 3
C. 1 and 4
D. 2 and 3 - Which one of the following is a component of a shield for tunnelling ?
A. liner plate
B. trench jack
C. stiffener
D. cutting edge
