A. Gravity settling chamber
B. Cyclone separator
C. Electrostatic precipitator
D. Bag filter
Related Mcqs:
- Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas ?
A. Packed scrubber
B. Gravity settling chamber
C. Electrostatic precipitator
D. Hydrocyclone - Which of the following fine dust removal equipments is the most efficient ?
A. Bag filter
B. Scrubber
C. Electrostatic precipitator
D. Cyclone separator - In large thermal power stations very fine particulates present in flue gas are removed by___________________?
A. Wet scrubber
B. Bag filter
C. Electrostatic precipitators
D. Dust catcher - Which of the following dust collection equipments is the least efficient (for sub-micronic particles) ?
A. Dust catcher (gravity type)
B. Cyclone separator
C. Bag filter
D. Hollow wet scrubber - Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants ?
A. NOx
B. Hg
C. SO2
D. F - Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream ?
A. Sedimentation tank
B. Circular clarifier
C. Mechanical flocculation
D. Chemical coagulation - Which of the following is an adsorbent for removal of nitrogen oxides from gas/air ?
A. Active carbon
B. Silica gel
C. Bog iron (iron oxide)
D. Pulverised limestone - Ethanolamine is an absorbent used for the removal of _____________ from air/gas?
A. HF
B. SO2
C. H2S
D. Both B. & C. - Which of the following is an adsorbent used for the removal of SO2 from gas/air ?
A. Bog iron
B. Limestone powder or alkalised alumina
C. Silica gel
D. Active carbon - Methyl isocyanate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of ______________ toxic gas?
A. Moderately
B. Highly
C. Extremely
D. Very extremely
