MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
What is the temperature at which sludge has to be frozen in order to carry out conditioning? |
| A. | -2 to -5 degree |
| B. | -20 to -25 degree |
| C. | -5 to -8 degree |
| D. | -10 to -20 degree |
| Answer» E. | |