A. Separation of isotopes based on their density or molecular weights difference
B. Concentration of rubber latex
C. Separation of cream from milk
D. Dewaxing of lubricating oil
Related Mcqs:
- Trommels are revolving screens which normally operate in the range of _______________ rpm?
A. 1 – 2
B. 15 – 20
C. 40 – 50
D. 60 – 75 - The speed of a rotary drum vacuum filter may be about _____________ rpm?
A. 1
B. 50
C. 100
D. 500 - Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) ?
A. 0.5 D
B. D
C. 1.5 D
D. 2 D - Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the ___________________?
A. Light metal powder down upto 4 mesh size
B. Dry chemicals
C. Heavy tonnages of rocks or gravel
D. Powdered food & granular materials - _______________ mill is normally used for grinding of talc?
A. Tube
B. Compartment
C. Ring-roll
D. Pebble - Supporting legs of a plate and frame filter is normally made of________________?
A. Stainless steel
B. Cast iron
C. High speed steel
D. Wooden plank - _____________ Centrifuge is normally used in sugar mills?
A. Tubular bowl
B. Disc-bowl
C. Suspended batch basket
D. Perforated horizontal basket continuous - Limestone is normally crushed in a _____________________?
A. Roll crusher
B. Hammer crusher
C. Ball mill
D. Tube mill - _____________ is the most suitable for compounding rubber and plastic solids ?
A. Banbury mixer
B. Pan mixer
C. Pug mill
D. Charge can mixer - Which is the most suitable conveyor for transportation of sticky material ?
A. Apron conveyor
B. Belt conveyor
C. Screw conveyor
D. Pneumatic conveyor
