Category: Tunnel Engineering

A. remains same
B. decreases
C. increases by 2.25 times
D. increases by 3.5 times

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

A. carrying water
B. non-cohesive soils
C. tunnels driven by shield method
D. placement of concrete lining

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

A. normal to face
B. inclined at 45° to the face
C. inclined at 15° to the face
D. inclined at 30° to the face

A. Army method
B. Needle beam method
C. Austrian method
D. English method

A. silt
B. sand
C. clay
D. gravel

A. soft grounds
B. rock
C. self supporting grounds
D. broken grounds

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.

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 high

A. 1 and 2
B. 1 and 3
C. 1 and 4
D. 2 and 3