Assertion (A): Faces for attacking excavation and construction of tunnels are opened by constructing pilot tunnels.Reasoning (R): Pilot tunnels are suitable at locations when horizontal approach to the centre line of tunnel is shorter than deep vertical shafts.

Question

TuteeHUB · Accepted Answer

(A) is true and (R) is false

TuteeHUB · Answer

Both (A) and (R) are true but (R) is the correct explanation of A

TuteeHUB · Answer

(A) is false and (R) is true

TuteeHUB · Answer

Both (A) and (R) are false

1.	Assertion (A): Faces for attacking excavation and construction of tunnels are opened by constructing pilot tunnels.Reasoning (R): Pilot tunnels are suitable at locations when horizontal approach to the centre line of tunnel is shorter than deep vertical shafts.
A.	Both (A) and (R) are true but (R) is the correct explanation of A
B.	(A) is true and (R) is false
C.	(A) is false and (R) is true
D.	Both (A) and (R) are false
Answer» B. (A) is true and (R) is false

Assertion (A): Faces for attacking excavation and construction of tunnels are opened by constructing pilot tunnels.Reasoning (R): Pilot tunnels are suitable at locations when horizontal approach to the centre line of tunnel is shorter than deep vertical shafts.

Discussion

No Comment Found

Related MCQs

Reply to Comment