Mechanical Operations MCQ Questions & Answers | Chemical Engineering

A. Recommended peripheral speed for the turbine agitator is 200 - 250 metres/minute

B. Pitched blade turbine agitator gives only radial flow with complete absence of the axial flow

C. Generally, the diameter of the agitator is kept between $${\frac{1}{3}^{{\text{rd}}}}$$ to $${\frac{1}{6}^{{\text{th}}}}$$ of the tank diameter while the blade length is $${\frac{1}{4}^{{\text{th}}}}$$ of agitator diameter (with central disc, it is $${\frac{1}{8}^{{\text{th}}}}$$ of the agitator diameter)

D. Turbine agitator should be located at a height not less than one agitator diameter length from the bottom. If the depth of liquid in the tank is more than twice the agitator diameter, two agitators should be used

A. Immiscible liquids of different

B. Miscible liquids of different

C. Immiscible liquids of same

D. Miscible liquids of same

A. 5-10

B. 10-20

C. 20-40

D. As high as 100

A. Propeller

B. Helical screw

C. Flat blade turbine

D. Curved blade turbine

A. Increase the porosity

B. Increase the compressibility co-efficient

C. Decrease the porosity

D. Decrease the compressibility co-efficient

A. Speed

B. Thickness

C. Length

D. None of these

A. Swirling

B. Vortexing

C. Both A & B

D. Neither A nor B

A. Filter cloth

B. Embedded particles in the septum

C. Filter cloth and the embedded particle collectively

D. None of these

A. Jet mills

B. Fluid energy mill

C. Micronizer

D. All of the above

A. $$\frac{{6{\text{V}}}}{{{\text{D}}.{\text{S}}}}$$

B. $$\frac{{\text{V}}}{{6{\text{D}}.{\text{S}}}}$$

C. $$\frac{{{\text{D}}.{\text{S}}}}{{\text{V}}}$$

D. $$\frac{{\text{V}}}{{{\text{D}}.{\text{S}}}}$$