The base course is generally laid in earth road for a thickness of ______

The blade angle of bulldozer is usually ______

The compaction of sand is done by ______

The rollers that uses both tamping and kneading is ______

How many kg of binder is applied for 10m2 area?

The steel reinforcement is placed at ______

Dragline cannot excavate ______

The embankment construction should always be ______