The inside clearance of the sampler should ___

In open drive samples, the tube is split into two parts.

Auger is suitable for ___

The inside clearance of the sampler is ____

Wash boring cannot be used for _____ type of soil strata.

The sample is driven by a weight of _________ in sample in standard penetration test.

In hand operated rings in ‘auger and shell boring’ the depth of which it can be used is _____

To know the cone resistance, it is first forced down to _____ depth.