A. soft grounds
B. rock
C. self supporting grounds
D. broken grounds
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
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. 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.
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
A. liner plate
B. trench jack
C. stiffener
D. cutting edge
A. propelling jacks
B. liner plate
C. hood
D. tail