A. Sodium silicate
B. Quartz
C. Lime
D. Alumina
Related Mcqs:
- 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 - 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. - Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity ?
A. Sphere
B. Cube
C. Cylinder (L/D = 1)
D. Raschig rings - Specific surface area is the surface area of a unit _______________ of materials?
A. Weight
B. Volume
C. Either A. or B.
D. Neither A. nor B. - In froth floatation, chemical agent added to cause air adherence is called___________________?
A. Collector
B. Frother
C. Modifier
D. Activator - What is the reduction ratio in a fine crushing operation having following feed and product sizes ?
A. 0.5
B. 2
C. 5
D. 10 - Which of the following is not categorised as a “mechanical operation”?
A. Agitation
B. Filtration
C. Size enlargement
D. Humidification - Which of the following parts of a jaw crusher is subjected to maximum wear and tear during its operation ?
A. Check plates
B. Jaw plates
C. Toggles
D. Crush shaft - In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the _____________ crushing?
A. Primary
B. Secondary
C. Fine
D. Ultrafine - During filtration operation, the filtrate encounters the resistance of the ___________________?
A. Filter medium
B. Cake
C. Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter
medium
D. All A., B. and C.
