A. Blood poisoning
B. Anaemia
C. Nervous system disorder
D. All A., B. & C.
Related Mcqs:
- 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. - Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes_________________?
A. Paralysis of muscles & loss of appetite
B. Nervous depression
C. Gastritis and diarrhea
D. All A., B. and C. - Main pollutant present in automobile exhaust is_________________?
A. CO
B. CO2
C. NO
D. Hydrocarbons - Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for___________________?
A. Conversion of CO into CO2 in the second compartment
B. Conversion of NOx into N2 and NH3 in the first compartment
C. Oxidation of unburnt hydrocarbon fuel in the second compartment
D. All A., B. and C. - Photochemical smog is formed from automobile exhaust ________________?
A. By reaction of hydrocarbon & nitric oxide in presence of sunlight
B. Appears only on sunny days
C. Is harmful for crops and trees also besides causing eye irritation & asthma
D. All A., B. & C. - During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum ?
A. Idle running
B. Acceleration
C. Cruising
D. Deceleration - 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. - Insufficient washing of sand grains in a rapid sand filter causes__________________?
A. Air binding
B. Shrinkage of filtering media
C. Mud balls
D. Expansion of filtering media - Thermal pollution due to excessive heat & temperature in the working place causes__________________?
A. Reduction in working efficiency of manpower
B. Fatigue
C. High breathing rate
D. All A., B. & C. - Presence of excess fluorine in water causes__________________?
A. Dental cavity
B. Tooth decay
C. Fluorosis
D. Respiratory disease
