A soil-phase diagram for a soil sample is called a unit-phase diagram if the volume of ________ in the soil sample is considered as unity.

In a Standard Penetration Test (SPT) to determine the bearing capacity of soil, the penetration resistance 'N' indicates the number of blows required to drive a standard split-spoon sampler over a final distance of ________ into the soil using a _______ hammer falling from a height of _______.

A laboratory vane 12 cm long and 6 cm in diameter was pressed into soft clay. Both the top and the bottom ends of the vane partake in shearing the soil. What will be the shear strength of the clay if the torque applied at failure is 47,520 N·mm?