A. 42 D
B. 82 D
C. 104 D
D. 124 D
Related Mcqs:
- Assertion A : When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock. Reason R : A tunnel through rock, hard or soft, does not need any concrete lining________________?
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true - 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 one of the following is considered to be an advantage of the heading and benching method of tunnel construction?
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 - 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 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 - What is the correct sequence of the following events in rock tunnelling?
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 - Which one of the following is a component of a shield for tunnelling ?
A. liner plate
B. trench jack
C. stiffener
D. cutting edge - 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 - The needle beam method of tunneling______________?
(i) is suitable for soils in which roof can stand for few minutes without support
(ii) is suitable for brick lining
(iii) is suitable for concrete lining
(iv) requires large number of trench jacks
select the answer?A. only (i) is correct
B. (i), (ii) and (iv) are correct
C. (i), (iii) and (iv) are correct
D. (i) and (ii) are correct - American method of tunneling________________?
i) is suitable for large sized tunnels
ii) is no,’ suitable for railway or highway tunnel’s
iii) requires heavy timbers
select the correct answer?A. only (i) is correct
B. (i) and (iii) are correct
C. (ii) and (iii) are correct
D. (i) and (ii) are correct
