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Solved Example: 9888-01

Match List I with List II
List I
(Emitted Pollutants)
A. $CO_2$
B. $CO$
C. $NO_x$
D. $C_6H_6$

List II
(Environmental Impact)
I. Formation of acid rain
II. Toxic and are carcinogenic
III. Toxic and can cause respiratory diseases
IV. Contribution to global warming as a Greenhouse gas
Choose the Correct Answer from the option given below:

A. A - IV, B - III, C - I, D - II

B. A - IV, B - II, C - I, D - III

C. A - IV, B - II, C - III, D - I

D. A - I, B - III, C - II, D - IV

Correct Answer: A

Solved Example: 9887-01

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R) :

Assertion (A): Carbon monoxide (CO) is a serious asphyxiant even a short exposure may have fatal health issues.
Reason (R): Hemoglobin present in the blood has a greater affinity towards carbon monoxide than oxygen.

In the light of the above statements choose the most appropriate answer from the options given below :

A. Both (A) and (R) are correct and (R) is the correct explanation of (A)

B. Both (A) and (R) are correct but (R) is NOT the correct explanation of (A)

C. (A) is correct but (R) is not correct

D. (A) is not correct but (R) is correct

Correct Answer: A

Solved Example: 9887-02

Given below are two statements:

Statement I: Chronic toxic effects result from a single dose of a very high toxic substance or continuous exposure to a sub-lethal dose.

Statement II: Acute toxic effects are long-lasting and irreversible mainly caused due to prolonged exposure to toxins and the survival rate is very low.

In the light of the above statements, choose the correct answer from the options given below:

A. Both Statement I and Statement II are true

B. Both Statement I and Statement II are false

C. Statement I is correct but Statement II is false

D. Statement I is incorrect but Statement II is true

Correct Answer: C

Solved Example: 9886-01

Gamma radiation can be shielded with:

A. Paper

B. Human Skin

C. Aluminum

D. Lead

Correct Answer: D

Solved Example: 9886-02

A person's dose resulting from his exposure to radiation is described in the following units:

A. Radium

B. Sievert

C. Gray

D. Becqurel

Correct Answer: B

Industrial Hygiene