Related Questions

A coalescer in a mixer-settler liquid-liquid extraction coloumn
A Comprises of thin bed of substances of extended surface having high porosity
B Helps in increasing the bubble size entering the settler
C Helps in increasing the settling rate of the bubbles
D All of the above
Pencillin is made employing __________ fermentation process.
A Continuous
B Aerobic batch
C Anaerobic batch
D None of these
The recovery of pencillin from the acidified fermentation broth is done by
A Distillation
B Evaporation
C Absorption
D Liquid extraction
The fermentor used in the production of pencillin (by deep fermentation process) is made of
A Glass
B Glass lined steel
C High silicon cast iron
D Procelain
Pencillin, an antibiotic drug was discovered by
A Alexender
B Flaming
C Dr. Zivago
D None of these
A garments factory employs 3 categories of workers K, M and N. The efficiency of the 3 categories of workers to do a specific task is in the ratio of 3 : 5 : 6 respectively and the factory employs 15 of category K, 12 of category M and 3 of category N. If the total wages paid to the entire group of 30 workers is Tk. 492 per hour, what will be the wages earned by a category N worker for an 8-hour day?
A Tk. 144
B Tk. 72
C Tk. 192
D Tk. 576
Q.(1-4): Answer the questions on the basis of the information given below. * F,G and H are insurance companies , Q,R,S and T are private detectives .Each detective works for at least one of the insurance companies. * Q always works for F and at least one of the other companies. Some of the time G employs only one of these detectives,' the rest of the time it employs exactly two of them. *F and H each employ exactly two of these detectives all the time. If R works for H only, and if S works for G and H only, T works for--
A F only
B G only
C H only
D both F and G
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.
A $${\frac{1}{{10}}^{{\text{th}}}}$$
B $${\frac{1}{{20}}^{{\text{th}}}}$$
C $${\frac{1}{{30}}^{{\text{th}}}}$$
D $${\frac{1}{{50}}^{{\text{th}}}}$$
When a high liquid hold up is required in a reactor for gas liquid reaction, use __________ coloumn.
A Packed
B Spray
C Tray
D Bubble
Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure.
A Small differential
B Atmospheric
C Absolute
D Gage

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