Question

A pressure difference of _____________ is applied to the vacuum floatation method to remove impurities from sewage.

a.

0.5 atm

b.

1 atm

c.

1.5 atm

d.

2 atm

Answer: (b).1 atm

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Q. A pressure difference of _____________ is applied to the vacuum floatation method to remove impurities from sewage.

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