Choose your answer before opening the explanation. This is a learning exercise, not a competency assessment.
Casing moisture at pinning is given by DMR as:
- 48 to 52 per cent
- 20 to 25 per cent
- 70 to 75 per cent
- Not specified
See the answer and why
48 to 52 per cent 48 to 52 per cent, judged on the casing layer.

