1.

The pressure which is applied to separate the water from its contaminants is of the order

A. 5-10 kg/cm<sup>2</sup>
B. 15-40 kg/cm<sup>2</sup>
C. 50-100 kg/cm<sup>2</sup>
D. 100-150 kg/cm<sup>2</sup>
Answer» C. 50-100 kg/cm<sup>2</sup>


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