In which of the following compaction tests for soil, are the mass of rammer and a free drop to compact 4.9 kg and 450 mm, respectively?

Correct option is C

The test which are to obtained optimum moisture content are –
1. Standard proctor test
2. Modified proctor test.
3. IS light compaction test.
4. IS heavy compaction test.
For Indian Standard light compaction test –
Weight of Hammer = 2.60 kg
Height of free fall = 310 mm
Whereas for IS heavy compaction test-
Weight of hammer = 4.9kg.
Height of free fall = 450mm.