Sulphur dioxide present in the industrial chimney exhaust causes

Sulphur dioxide present in the industrial chimney exhaust gases causes

A

Respiratory & lung disease

B

Reduction in plant's productivity owing to acid rain

C

Corrosion of building materials

D

All of the above

Draught produced by a tall chimney due to density difference between hot flue gas inside the Chimney and atmospheric air outside the chimney is more appropriately known as the __________ draught.

A

Natural

B

Induced

C

Forced

D

Chimney

The draught produced by steel chimney as compared to that produced by brick chimney for the same height is

A

Less

B

More

C

Same

D

May be more or less

The draught produced, for a given height of the chimney and given mean temperature of chimney gases

A

decreases with increase in outside air temperature

B

increases with increase in outside air temperature

C

remains the same irrespective of outside air temperature

D

may increase or decrease with increase in outside air temperature

The maximum discharge through a chimney occurs when the height of chimney is

A

Infinitely long

B

Around 200 meters

C

Equal to the height of the hot gas column producing draught

D

Outside temperature is very low

A device used to heat feed water by utilizing the heat in me exhaust flue gases before leaving through the chimney, is known as

A

Economizer

B

Fusible plug

C

Superheater

D

Stop valve

Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes

A

Fading of dyes on textiles

B

Corrosion, tarnishing & soiling of metals

C

Reduced strength of textiles

D

All of the above

Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes

A

Blood poisoning

B

Anaemia

C

Nervous system disorder

D

All of the above

Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about

A

0.1

B

1

C

2.5

D

3.5

Sulphur Dioxide pollution is indicated by an excessive growth of which of the following?

A

Algal Blooms

B

Lichens

C

Bryophytes

D

Protozoa

Sulphur dioxide present in the industrial chimney exhaust causes

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