A. Enters the cyclone from the top
B. Is admitted tangentially at high velocity
C. Develops a helical motion inside the chamber
D. Both B. and C.
Related Mcqs:
- Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an________________?
A. Air filter
B. Bag filter
C. Venturi scrubber
D. Hydrocyclones - Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively ?
A. 200°C and 5 atm
B. 1000°C and 10 atm
C. 500°C and 50 atm
D. 1000°C and 500 atm - Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a____________________?
A. Disc bowl centrifuge
B. Sharpies super-centrifuge
C. Batch basket centrifuge
D. Sparkler filter - Dust laden air can be purified using a____________________?
A. Cyclone separator
B. Bag filter
C. Gravity settler
D. Tubular centrifuge - For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is__________________?
A. 2250
B. 1125
C. 460
D. 230 - The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the__________________?
A. Venturi atomiser
B. Gravity settling chamber
C. Electro-static precipitator
D. Cyclone separator - The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an______________?
A. Bag filter
B. Electrostatic precipitator
C. Cyclone separator
D. Wet scrubber - Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm) ?
A. Trough washer
B. Baum jig washer
C. Spiral separator
D. Froth floatation - For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a__________________?
A. Buhrstone mill
B. Ball mill
C. Crushing rolls
D. Hammer mill - The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size)?
A. c/s
B. s/c
C. s . c
D. 1/s . c
