Which one of the following is a component of a shield for tunnelling ?

Related Mcqs:

In compressed air tunneling, the volume of free air provided is______________?

A. 6 mJ per second per m2 of face area B. 6 m3 per minute per m2 of face area C. 20 m3 per minute per m2 of face area D. 6 m3 per hour per m2 of face area...

Which one of the following tunnelling methods is used for laying under ground sewers ?

A. Needle beam method B. Army method C. German method D. Italian method...

Circular section of tunnels is not suitable for________________?

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

As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield___________________?

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

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? A. 1,2,3,4 B. 1,4,2,3 C. 2,1,4,3 D. 2,4,1,3...