NEHA RS REHS FINAL EXAM Questions and Answers Latest Versions 2025 TOP RATED A+

1




NEHA RS REHS FINAL EXAM Questions
and Answers Latest Versions 2025 TOP
RATED A+

a. Question 1
Marks: 1
Which of the following is not a malodorous gas?
Choose one answer.

a. sulfur dioxide

b. hydrogen sulfide

c. carbon monoxide

d. phenol

carbon monoxide

Question 2
Marks: 1
Impurities in combustible hydrocarbons (coal and oil) combine with oxygen to produce when
burned.
Choose one answer.

a. nitrogen oxide

b. sulfur dioxide

c. nitrogen dioxide

d. carbon monoxide

sulfur dioxide

Question 3
Marks: 1
The speed with which sound travels through a particular medium is dependent on
Choose one answer.

, 2



a. the compressibility of the medium

b. the density of the medium

c. the compressibility and density of the medium

d. none of the above

the compressibility and density of the medium

Question 4
Marks: 1
is considered to be the least damaging to the stratospheric ozone layer.
Choose one answer.

a. CFCs
b. methyl bromide

c. halon

d. HCFCs

HCFCs

Question 5
Marks: 1
Which of the following is not a primary pollutant?
Choose one answer.

a. sulfur dioxide

b. hydrocarbon

c. nitrogen dioxide

d. sulfuric acid

sulfuric acid

Question 6
Marks: 1
Almost all sound contains multiple frequencies.
Choose one answer.

a. True

b. False

True



Question 7
Which of the following is the most effective technique for ceasing operation of a noncomplying
establishment?

, 3


Choose one answer.

a. a mandatory injunction

b. revoking a license

c. an injunction