The angle of internal friction for fines lesser than 5% is _______

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

In Dutch cone test, the cone along with mantle is further penetrated after 8cm to a depth of ____

The inside clearance of the sampler is ____

A ____ sample has preserved natural structure of soil.

The undistributed samples are obtained by __

The angle of internal friction for fines greater than 5% is _______

In Seismic refraction method, the radiating shock waves are picked up by __