A. Coal
B. Uranium ore
C. Iron ore
D. Lime
Related Mcqs:
- Siderosis is a disease caused by the inhalation of ______________ dust?
A. Coal
B. Silica
C. Iron
D. None of these - Inhalation of silica dust causes a disease called__________________?
A. Bronchitis
B. Silicosis
C. Pneumoconiosis
D. None of these - Inhalation of silica dust by human being causes ___________________?
A. Asphyxiation
B. Shortness of breath
C. Tuberculosis
D. Both B. & C. - Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundries causes___________________?
A. Asphyxiation (suffocation)
B. Shortness of breath
C. Tuberculosis
D. All A., B. and C. - 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 - Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes__________________?
A. Blood poisoning
B. Anaemia
C. Nervous system disorder
D. All A., B. & C. - Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes________________?
A. Blood poisoning
B. Anaemia
C. Nervous system disorder
D. All A., B. and C. - Fluorosis (a bone disease) is caused by the presence of high concentration of ____________ in atmospheric air?
A. Hydrocarbons
B. Hydrogen fluoride
C. Hydrogen sulphides
D. Nitrogen dioxide - Most efficient and suitable dust removal equipment for removal of fly-ash from flue gas in a thermal power plant is the__________________?
A. Gravity settling chamber
B. Cyclone separator
C. Electrostatic precipitator
D. Bag filter - 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
