The inside clearance of the sampler should ___

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

Depending upon the details, the site exploration may be classified as ___

The undistributed samples are obtained by __

________ sample has the natural structure of soil as modified.

The standard penetration test is performed in clear hole of _________ mm in diameter.

In Dutch cone test, the angle of vector of cone is ____

Thick wall samplers have area ratio______