1000+ Tunnel Engineering MCQ Questions and Answers - 2

Question: 6

A tunnel is found more advantageous as compared to the alternate routes because it

(A) avoids interference with surface rights

(B) remains free from snow

(C) reduces the maintenance cost

(D) reduces the cost by reducing the route distance

(E) All the above

Question: 7

Railway tunnels, are generally

(A) parabolic

(B) circular

(C) polycentric

(D) rectangular

Question: 8

Which one of the following statements is not correct with regard to heading and hunching method of tunnelling.

(A) Firing of head holes is done just before the bench holes are fired

(B) The holes in head and bench are loaded together with explosive for blasting

(C) After driving the top portion 3 m to 3.5 m holes are drilled into the head and bench

(D) Driving the top portion is done in advance of the bottom portion

(E) Driving of tunnel is done in two portions of its section

Question: 9

The most commonly adopted pattern of cut holes is

(A) V-cut

(B) fan cut

(C) pyramid cut

(D) horizontal wedge cut

(E) all the above

Question: 10

In the wooden bulk head, used for mucking in steep grade tunnels.

(A) no opening is provided

(B) one opening is provided

(C) two openings are provided

(D) three openings are provided