MCQOPTIONS
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MCQOPTIONS
| 1. |
For the use of vacuum method, the coefficient of permeability should be __________ |
| A. | greater than 10<sup>-3</sup>cm/s |
| B. | in the range 10<sup>-3</sup> to 10<sup>-5</sup>cm/s |
| C. | less than 10<sup>-5</sup>cm/s |
| D. | independent |
| Answer» C. less than 10<sup>-5</sup>cm/s | |