A. Mixer-settler extractor
B. Rotating-disc contactor
C. Pulsed column extractor
D. Bollman extractor
Related Mcqs:
- _____________ extractor is used for the concentration of radioactive nuclear waste?
A. Pulsed column
B. Sieve plate
C. Mixer-settler
D. Bollman - _______________ extractor is used for the concentration of radioactive nuclear waste?
A. Pulsed column
B. Sieve plate
C. Mixer-settler
D. Bollman - High pressure at the bottom of a distillation tower handling heat sensitive materials results in____________________?
A. Thermal decomposition of bottoms
B. Increased relative volatility
C. Erosion of the tower
D. Very efficient operation - Absorption accompanied by heat evolution results in____________________?
A. Increased capacity of the absorber
B. Increase in equilibrium solubility
C. Decrease in equilibrium solubility
D. None of these - The equipment used in the extraction of highly corrosive radioactive liquids is_______________________?
A. Pulse column
B. Spray column
C. Mixer settler
D. Baffle tower - The ratio of Murphree plate efficiency to point efficiency is always > 1 in a _______________ flow model?
A. Plug
B. Perfectly mixed
C. Both A. & B.
D. Neither A. nor B. - Flooding in a distillation column is detected by a sharp ___________________?
A. Increase in Murphree plate efficiency
B. Decrease in pressure drop
C. Decrease in liquid hold up in the column
D. Increase in pressure drop - The equilibrium liquid composition compared to the vapor composition in case of________________?
Azeotropic mixture is
A. More
B. Less
C. Same
D. Either more or less; depends on the system - Surface renewal model of mass transfer was enunciated by___________________?
A. Toor and Marcello
B. Fick
C. Danckwerts
D. Stefan - Pick out the system with minimum boiling azeotrope at 1 atm ?
A. Benzene-toluene
B. Ethyl alcohol-water
C. Hydrochloric acid-water
D. All A., B. and C.
