O.M.C. refers to the moisture corresponding to the maximum point on the moisture content dry density curve

The line which shows moisture content dry density relation for soil containing a constant percentage of air voids, is known as air void line

The weight of hammer used for compaction test is 25 kg

All of these

tan (45° - φ)

tan (45° + φ)

tan2 (45° - φ

tan2 (45° + φ)

Resilience of soils

Elasticity of soils

Compressibility of soils

None of these.

0.91

0.92

0.93

0.95

0.01

0.02

0.05

0.001