The outside clearance of the sampler is __

In site exploration, depth up to which the increase in pressure is likely to cause shear failure is known as _______

For undisturbed sampling, the penetration of the sampler should be periodic.

The various method of site exploration can be grouped under, which of the following?

In rotator boring ______ is forced down the hallow drillrods.

When deeper layers have increasingly greater density, the seismic refraction method is fast.

The penetration resistance is driving the sampler ______

The sampler is driven through ________ as seating drive.