Environmental Engineering

Question: 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).

Answer: Option D

Explanation:

No answer description available for this question.

Question: Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundaries causes
[A].

asphyxiation (suffocation).

[B].

shortness of breath.

[C].

tuberculosis.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: Exposure to chemicals having carcinogenic properties cause
[A].

dermatitis (skin disorder)

[B].

cancer

[C].

asphyxiation

[D].

asthma

Answer: Option B

Explanation:

No answer description available for this question.

Question: Out of the following, TLV of __________ is maximum (about 500 ppm).
[A].

carbon dioxide

[B].

toluene

[C].

carbon disulphide

[D].

acetaldehyde

Answer: Option A

Explanation:

No answer description available for this question.

Question: Out of the following, TLV of __________ is the minimum (about 0.02 ppm).
[A].

phosgene

[B].

bromine

[C].

MIC (methyl iso-cynate)

[D].

ozone

Answer: Option C

Explanation:

No answer description available for this question.

Question: ‘Pneumoconiosis’ is a disease caused by the inhalation of __________ dust.
[A].

coal

[B].

uranium ore

[C].

iron ore

[D].

lime

Answer: Option A

Explanation:

No answer description available for this question.

Question: Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.
[A].

mercury

[B].

lead

[C].

fluoride

[D].

arsenic

Answer: Option C

Explanation:

No answer description available for this question.

Question: Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c.
[A].

1

[B].

7

[C].

19

[D].

82

Answer: Option B

Explanation:

No answer description available for this question.

Question: Industrial workers working in leather tanning & manufacturing units are prone to suffer from
[A].

respirtory ailments (e.g. bronchitis).

[B].

skin diseases (e.g. dermatities).

[C].

silicosis.

[D].

blurred vision.

Answer: Option B

Explanation:

No answer description available for this question.

Question: From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.
[A].

1

[B].

5

[C].

50

[D].

500

Answer: Option B

Explanation:

No answer description available for this question.