A. 2N
B. N + 2
C. 2 N + 1
D. 2 N + 2
A. propelling jacks
B. liner plate
C. hood
D. tail
Which of the following is not a component of the shield ? Read More »
Tunnel Engineering A. 42 D
B. 82 D
C. 104 D
D. 124 D
A. 2 m
B. 3 m
C. 4 m
D. 5 m
A. construction of side walls is completed before invert and roof arch are built
B. construction of roof arch is completed before side walls and invert are built
C. construction of invert is completed before side walls and roof arch are built
D. construction of invert and side walls is completed before roof arch is built
In Belgium method of tunneling _________________? Read More »
Tunnel Engineering A. soft grounds
B. rock
C. self supporting grounds
D. broken grounds
Drift method of tunnelling is used to construct tunnels in__________________? Read More »
Tunnel Engineering A. liner plate
B. trench jack
C. stiffener
D. cutting edge
Which one of the following is a component of a shield for tunnelling ? Read More »
Tunnel Engineering A. It is suitable for construction in unstable rocks
B. In this method, it is easy to install timber support
C. Tunnelling can be continuous and the work can be expedited
D. In case of excessive water, it is easy to take correct steps
1. marking tunnel profile
2. loading explosives and blasting
3. checking misfire
4. mucking
5. removing foul gas
6. setting up and drilling
7. guniting
Select the correct answer using the codes given below
Codes ?
A. 1,6,5,3,4,2,7
B. 1,2,6,3,5,4,7
C. 1, 6,2, 5,4, 3, 7
D. 1,6,2,5,3,4,7
What is the correct sequence of the following events in rock tunnelling? Read More »
Tunnel Engineering A. Army method
B. Needle beam method
C. Austrian method
D. English method
Which of the following methods of tunneling is used for long tunnels at great depths ? Read More »
Tunnel Engineering