Test your knowledge about Tunnel Engineering by taking this Multi Choice Question (MCQ) quiz. Get your score and actual answers at the end of this quiz.
1. Circular section of tunnels is not suitable for
carrying water
non-cohesive soils
tunnels driven by shield method
placement of concrete lining
2. 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. mucking
Select the correct answer using the codes given below Codes :
1. drilling and blasting
2. timbering
3. pumping
4. mucking
Select the correct answer using the codes given below Codes :
1,2,3,4
1,4,2,3
2,1,4,3
2,4,1,3
3. A good blast with a good yield is obtained if the cut hole is
normal to face
inclined at 45? to the face
inclined at 15? to the face
inclined at 30? to the face
4. As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield
remains same
decreases
increases by 2.25 times
increases by 3.5 times
5. Which of the following are percussion drills ?
(i) shot drill
(ii) diamond drill
(iii) wagon drill
(iv) churn drill Of these statements
(i) shot drill
(ii) diamond drill
(iii) wagon drill
(iv) churn drill Of these statements
(i) and (ii) are correct
(iii) and (iv) are coiTect
(i) and (iv) are correct
(ii) and (iii) are correct
6. Drifters can be used to drill
only up holes
only down holes
horizontal or up holes
horizontal, down or up holes
7. If ‘N’ is the number of shafts used, then the total number of faces available for attacking the excavation and construction in tunnels are
2N
N + 2
2 N + 1
2 N + 2
8. The correct sequence of drilling equipment for increasing size of holes in tunnels is
wagon drill, churn drill, shot drill
wagon drill, shot drill, churn drill
shot drill, churn drill, wagon drill
churn drill, wagon drill, shot drill
9. Which of the following is not a component of the shield ?
propelling jacks
liner plate
hood
tail
10. In compressed air tunneling, the volume of free air provided is
6 m3 per second per m2 of face area
6 m3 per minute per m2 of face area
20 m3 per minute per m2 of face area
6 m3 per hour per m2 of face area
11. Assertion A : English method of tunneling requires more time as compared to other methods of tunneling.
Reason R : In English method of tunneling, the masons and excavators have to work alternately.
Select your answer based on the coding system given below :
Reason R : In English method of tunneling, the masons and excavators have to work alternately.
Select your answer based on the coding system given below :
Both A and R are true and R is the correct explanation of A.
Both A and R are true and R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
12. 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 Of these statements
i) is suitable for large sized tunnels
ii) is no,’ suitable for railway or highway tunnel’s
iii) requires heavy timbers Of these statements
only (i) is correct
(i) and (iii) are correct
(ii) and (iii) are correct
(i) and (ii) are correct
13. Which of the following lining material is useful for shield driven tunnels in sub aqueous regions ?
stone masonry
timber
cast iron
cement concrete
14. If ‘D’ is the diameter of tunnel in metres, then the thickness of lining in mm, as per the empirical formula is given by
42 D
82 D
104 D
124 D
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