A. Trough washer
B. Baum jig washer
C. Spiral separator
D. Froth floatation
Related Mcqs:
- 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 - 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 - In the cyclone separator used for separation of dust from dust laden gas, the gas ?
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. - 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 - Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?
A. Density separation
B. Differential wettability
C. Size
D. Volatile matter content - Float and sink test determines the possibility of cleaning of coal by a process based on the___________________?
A. Gravity separation
B. Wettability
C. Particle shape
D. None of these - For sizing of fine materials, the most suitable equipment is a____________________?
A. Trommel
B. Grizzly
C. Shaking screen
D. Vibrating screen - ____________ conveyor is the most suitable for long distance transportation of cold, nonabrasive granular/irregular shape/fine materials?
A. Bucket
B. Belt
C. Screw
D. Apron - A cottrell precipitator makes use of the ______________ for dusty air cleaning?
A. Electric spark
B. Corona discharge
C. Alternating current
D. None of these - In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called _____________ is produced?
A. Concentrate
B. Tailing
C. Middling
D. None of these
