engineering recuitment NHPC JE & THDC JE 2023 Mock Test Soil Mechanics and Foundation Engineering Index Properties
The hydrometer test for grain size analysis is based on the principle that:
1
The grains of different sizes fall through a liquid at different velocities
2
The grains of different sizes forms clusters
3
The induced centrifugal force separates out the particles based on their grain size
4
The repulsion of water causes grains to settle at different times