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
Related Mcqs:
- What is the correct sequence of the following events of construction of a shaft in rock ?
1. drilling and blasting
2. timbering
3. pumping
4. muckingSelect the correct answer using the codes given below Codes?
A. 1,2,3,4
B. 1,4,2,3
C. 2,1,4,3
D. 2,4,1,3 - 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 one of the following tunnelling methods is used for laying under ground sewers ?
A. Needle beam method
B. Army method
C. German method
D. Italian method - Which one of the following is a component of a shield for tunnelling ?
A. liner plate
B. trench jack
C. stiffener
D. cutting edge - Drift method of tunnelling is used to construct tunnels in__________________?
A. soft grounds
B. rock
C. self supporting grounds
D. broken grounds - 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 methods of tunneling is used for long tunnels at great depths ?
A. Army method
B. Needle beam method
C. Austrian method
D. English method - 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 - Which of the following is not a component of the shield ?
A. propelling jacks
B. liner plate
C. hood
D. tail - Which of the following are percussion drills ?
(i) shot drill
(ii) diamond drill
(iii) wagon drill
(iv) churn drill
select correct answer?A. (i) and (ii) are correct
B. (iii) and (iv) are coiTect
C. (i) and (iv) are correct
D. (ii) and (iii) are correct
