The correct sequence of drilling equipment for increasing size of holes in tunnels is________________?

Related Mcqs:

Which of the following methods of tunneling is used for long tunnels at great depths ?

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

What is the correct sequence of the following events in rock tunnelling?

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...

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

A. liner plate B. trench jack C. stiffener D. cutting edge...

Assertion A : English method of tunneling requires more time as compared to other methods of tunneling. Reason R : In English method of tunneling, the masons and excavators have to work alternately/

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....

Assertion A : When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock. Reason R : A tunnel through rock, hard or soft, does not need any concrete lining________________?

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...