What is/are the major difference(s) between disc and turbine type stirrer?

Question: What is/are the major difference(s) between disc and turbine type stirrer?
[A].

Blades in disc type are projected out beyond the edge of disc while blades are curved one in turbine type

[B].

Turbine type requires 50 % less air than disc type for the same yield and energy consumption

[C].

Both (a) and (b)

[D].

Number of blades in the stirrer

Answer: Option C

Explanation:

No answer description available for this question.

Froude number is avoided in calculation of power requirements for low viscosity liquid mixing systems when

Question: Froude number is avoided in calculation of power requirements for low viscosity liquid mixing systems when
[A].

baffled systems are used

[B].

Reynolds number is less than 300

[C].

both (a)and(b)

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Which of the following impeller is used in situation where strong vertical currents are desirable for suspending heavily particles?

Question: Which of the following impeller is used in situation where strong vertical currents are desirable for suspending heavily particles?
[A].

Propeller

[B].

Paddle

[C].

Turbine

[D].

None of these

Answer: Option A

Explanation:

No answer description available for this question.

The specificity of a ligand binding site on a protein is based on

Question: The specificity of a ligand binding site on a protein is based on
[A].

the absence of competing ligands

[B].

the amino acid residues lining the binding site

[C].

the presence of hydrating water molecules

[D].

the opposite chirality of the binding ligand

Answer: Option B

Explanation:

No answer description available for this question.