Filtration leaf test results indicate that the filtration rate of a protein product is 100 dry lbs/(ft2 hr). What size production filter would be required to obtain 100 dry lbs of filter cake/hr?

Question: The power required by an agitator operating in a gas-sparged system is
[A].

lesser than the power required by an impeller in operating at same speed in a gas free system

[B].

more than the power required by an impeller in operating at same speed in a gas free system

[C].

same as the power required by an impeller in operating at same speed in a gas free system

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: A microbial population in a suspension culture will only be limited by oxygen availability if the dissolved oxygen
[A].

concentration is less than the critical concentration

[B].

concentration is greater than the critical concentration

[C].

levels are greater than the saturation concentration of oxygen

[D].

levels are equal to saturation oxygen level

Answer: Option A

Explanation:

No answer description available for this question.

Question: If the stirrer speed is too slow, bubbles will accumulate and coalescese under the impeller. This phenomenon is known as a
[A].

coalesced impeller

[B].

flooded impeller

[C].

river impeller

[D].

dry impeller

Answer: Option B

Explanation:

No answer description available for this question.