The height of the free fall in sample in standard penetration test is _______

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

The sample in standard penetration test has inner diameter of _____ mm.

The sampler is driven through ________ as seating drive.

In Dutch cone test, the base of cone is ________ cm in diameter.

The cone test is very useful in ______

Exploratory borings in general exploration is carried out by using _______

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