The significant depth is assumed up to a level at which the net increase in vertical pressure becomes ___ of initial ove…

Refusal of standard penetration test occurs when the sampler penetrates ____

The cone resistance is approximately equal to __ times the penetration resistance N.

Thick wall samplers have area ratio______

Auger boring is most suitable for ______ type of work.

The sampler is driven through ________ as seating drive.

Sampler is over driven to avoid the compression of sample.

Stabilisation of soils are most commonly used in ______ engineering works.