Separation of materials of the same density based on their sizes by using then-different rates of flow is called (A) Sorting (B) Sizing (C) Flocculation (D) Elutriation

Separation of materials of the same density based on their sizes by using
then-different rates of flow is called
(A) Sorting
(B) Sizing
(C) Flocculation
(D) Elutriation
by

1 Answer

Answer :

(B) Sizing
by

Related questions

Separation of materials into products based on the difference of theirsizes is called(A) Sizing(B) Sorting(C) Classification(D) Flocculation

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Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation. (A) Clarification(B) Sedimentation(C) Flocculation(D) Classification

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Separation of solid particles based on their densities is called (A) Sizing (B) Sorting (C) Clarification (D) Dispersion

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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

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The study on washability of coal is done by using the __________ technique. (A) Tabling (B) Elutriation (C) Heavy media separation (D) None of these

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Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the (A) Coagulation (B) Flocculation (C) Sedimentation (D) Clarification

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Sorting classifiers employing differential settling methods forseparation of particles make use of the differences in their(A) Particle sizes(B) Densities(C) Terminal velocities(D) None of these

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The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called (A) Decoction (B) Percolation (C) Elutriation or elution (D) None of these

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At the point of boundary layer separation in fluid flow, the (A) Shear stress is maximum (B) Velocity gradient is flat (C) Density variation is maximum (D) Shear stress is zero

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A gravity decanter is meant for the separation of two __________ density. (A) Immiscible liquids of different (B) Miscible liquids of different (C) Immiscible liquids of same (D) Miscible liquids of same

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If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the(A) Sedimentation(B) Flocculation(C) Dispersion(D) Centrifugation

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Which of the following are included in the finishing operations for porous bearing? [IES-2005] 1. Infiltration 2.Sizing 3.Heat treatment 4.Coining Select the using the code given below: (a) 1 and 2 (b) 2 and 3 (c) 2 and 4 (d) 1 and 4

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A trickle bed reactor is the one, which (A) Has altogether three streams either entering or leaving (B) Processes three reactants at different flow rates (C) Processes three reactants with same flow rate (D) Employs all the three phases (i.e. solid, liquid and gas)

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Which of the following terminology is not used for size reduction of materials to fine sizes or powders? (A) Comminution (B) Dispersion (C) Pulverisation (D) Compression

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If Organic sources of carcinogenic compounds in water persist even after chlorination, then what is the correct sequence among treatment processes listed below if all these are considered compulsory ? 1. Coagulation 2. Sedimentation 3. Filtration in general 4. Activated carbon bed filtration 5. Flocculation 6. Chlorination a) 4-5-3-2-6 and 1 b) 1-2-3-4-5 and 6 c) 4- 2- 3- 1- 5 and 6 d) 1-5-2-3-4 and 6

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Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are (A) Carbonates (B) Sulphates (C) Silicates & phosphates (D) Bi-carbonates

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Calculate workers recruited and joined from the following: Labour turnover rates are 20%, 10% and 6% respectively under Flux method, Replacement method and Separation method. No. of workers replaced during the quarter is 80. (a) 112 (b) 80

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Calculate workers left and discharged from the following: Labour turnover rates are 20%, 10% and 6% respectively under Flux method, Replacement method and Separation method. No. of workers replaced during the quarter is 80. (a) 112 (b) 80 (c) 48 (d) 64

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Sizing material is incorporated in paper to(A) Impart resistance to penetration by liquids(B) Increase its thickness(C) Increase its flexibility & opacity(D) Increase its brightness

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What are some guidelines for sizing a PSV for a fire scenario on a vessel in a refinery service?

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Separation of two volatile liquids by distillation makes use of their (A) Selectivity (B) Relative volatility (C) Solubility (D) Density difference

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Additives used for promoting the flocculation of particles is a/an (A) Electrolyte (B) Surface active agent (C) Both (A) & (B) (D) Neither (A) nor (B)

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The process by which fine solids is removed from liquids is termed as (A) Decantation (B) Flocculation (C) Sedimentation (D) Classification

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Which of the following is not used as a surface active agent in a flocculation operation? (A) Sodium silicate (B) Quartz (C) Lime (D) Alumina

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