Related Questions

Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called
A Classification
B Sedimentation
C Clarification
D Decantation
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
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
A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream.
A Thickener
B Classifier
C Strainer
D Clarifier
Separation of __________ employs gaseous diffusion process.
A N2 and O2 from air
B Isotopes of uranium
C Isotopes of helium
D SO2 and air
__________ are used for the separation of coarse particles from a slurry of fine particles.
A Thickeners
B Classifiers
C Hydrocyclones
D Decanters
Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid?
A Sand bed filter
B Plate and frame filter press
C Vacuum filter
D Batch basket centrifuge
Solid particles separation based on the difference in their flow velocities through fluids is termed as the
A Clarification
B Classification
C Elutriation
D Sedimentation
A slurry is to be dried to produce flaky solid. Which dryer would you recommend?
A Spray dryer
B Drum dryer
C Rotary dryer
D Dielectric dryer
When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion.
A Same
B Two times
C Four times
D None of these

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