Question: Inhalation of silica dust by human being causes
[A].asphyxiation
shortness of breath
tuberculosis
both(b) & (c)
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Environmental Engineering
Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels.
Question: Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels.
[A].35
75
95
105
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is
Question: Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is
[A].inversely proportional to viscosity of gas.
proportional to the viscosity & density of the gas.
proportional to the pressure of the gas.
both (b) and (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the
Question: Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the
[A].forestation
rain
green house effect
vegetation
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for
Question: Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for
[A].conversion of CO into CO2 in the second compartment.
conversion of NOx into N2 and NH3 in the first compartment.
oxidation of unburnt hydrocarbon fuel in the second compartment.
all (a), (b) and (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Workers working in __________ industry are most prone to white lung cancer.
Question: Workers working in __________ industry are most prone to white lung cancer.
[A].coal mining
limestone mining
textile
asbestos
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Inorganic impurities causing water pollution is
Question: Inorganic impurities causing water pollution is
[A].fats
carbohydrates
salts of metals
protein
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU).
Question: The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU).
[A].20
230
750
1500
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Direct reaction of unsaturated hydrocarbons with either NO or NO2 produces an eye irritating pollutant compound known as
Question: Direct reaction of unsaturated hydrocarbons with either NO or NO2 produces an eye irritating pollutant compound known as
[A].photochemical smog.
peroxy acetyl nitrate (PAN) or methyl nitrile.
benzopyrene.
poly acrylonitrile
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
In large thermal power stations very fine particulates present in flue gas are removed by
Question: In large thermal power stations very fine particulates present in flue gas are removed by
[A].wet scrubber
bag filter
electrostatic precipitators
dust catcher
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.