Question

To counter act the tilts in the well during sinking operations, which of the following measures can be used?

(a) Regulation of grabbing

(b) Strutting the well

(c) Pushing by jack

(d) All of the mentioned

I had been asked this question during an interview for a job.

My doubt is from Well Sinking topic in section Well Foundations of Geotechnical Engineering II

Answer 1

The correct answer is (d) All of the mentioned

Explanation: Any of the following measures can usefully be employed to counteract the tilts in the well during sinking operations: i) regulating of grabbing ii) water jetting iii) eccentric loading iv) pulling the well vi) pushing by jacks.