Question: H2S present in gaseous stream can be removed by adsorption on
[A].silica gel
active carbon
bog iron
limestone powder
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Chemical Engineering
Ethanolamine is an absorbant used for the removal of __________ from air/gas.
Question: Ethanolamine is an absorbant used for the removal of __________ from air/gas.
[A].HF
SO2
H2S
both (b) & (c)
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
Question: Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
[A].gravity settling chamber
cyclone separator
electrostatic precipitator
bag filter
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Dust collection efficiency of a cyclone separator depends upon its
Question: Dust collection efficiency of a cyclone separator depends upon its
[A].diameter.
inlet gas velocity.
overall height.
all (a), (b) & (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
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
Question: 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.
nervous depression.
gastritis & diarrhea.
all (a), (b) and (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes
Question: Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes
[A].fading of dyes on textiles.
corrosion, tarnishing & soiling of metals.
reduced strength of textiles.
all (a), (b) and (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.
Question: Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.
[A].hydrocarbons
hydrogen flouride
hydrogen sulphides
nitrogen dioxide
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Persons working in cement plants and limestone quarries are more prone to disease like
Question: Persons working in cement plants and limestone quarries are more prone to disease like
[A].cancer
asthma
silicosis
flourosis (bone disease)
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the
Question: ‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the
[A].industrial chimney exhaust.
automobiles exhaust.
photochemical reaction in polluted atmosphere.
burning of domestic fuel.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
‘Particulate’ air pollutants are finely divided solids and liquids. Which of the following is not a ‘particulate’ ?
Question: ‘Particulate’ air pollutants are finely divided solids and liquids. Which of the following is not a ‘particulate’ ?
[A].Dust & mists
Smoke & fumes
Photochemical smog & soot
None of these
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.