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Computer Science Fundamentals System Design Objective

Apr 10, 2013

In the method of tube boring of soil investigation, the following is essential :

Choose the correct answer:

A) a tube of about 2 metres length and 20 cm diameter with a cutting edge

B) a flap valve at the bottom of tube is provided to extract the soil sample

C) the tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand

D) the tube is dropped to fall under gravity in side a metalic casing pipe which is driven as the depth of excavation proceeds

Detailed Explanation

Option e is right answer.

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