NEHA RS/REHS EXAM QUESTIONS AND ANSWERS
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Question 4
Marks: 1
The Medical Waste Tracking Act of 1988, which amended the Solid Waste Disposal Act,
required ______ to establish a two year demonstration program for tracking medical waste in
selected states.
Choose one answer.
a. CDC
b. USDA/APHIS
c. EPA
d. none of the above - CORRECT ANSWERS EPA
Question 5
Marks: 1
Excessive condensation, corrosion, and mildew occur when the relative humidity exceeds
Choose one answer.
a. 20 percent
b. 40 percent
,NEHA RS/REHS EXAM QUESTIONS AND ANSWERS
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c. 80 percent
d. 60 percent - CORRECT ANSWERS 60 percent
Question 6
Marks: 1
A biohazard is
Choose one answer.
a. any material that negatively impacts a biological organism
b. a material of biological composition, especially if infective, that constitutes a threat to
humans or their environment
c. a chemical that constitutes a threat to man or his environment
d. any virus that causes fatal disease - CORRECT ANSWERS a material of biological
composition, especially if infective, that constitutes a threat to humans or their environment
Question 7
Marks: 1
To prevent chimney backdrafts, the chimney must be constructed ______ inches above the
highest point of the roof at a minimum.
Choose one answer.
,NEHA RS/REHS EXAM QUESTIONS AND ANSWERS
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a. 4 inches
b. 8 inches
c. 24 inches
d. 48 inches - CORRECT ANSWERS 24 inches
Question 8
Marks: 1
Cross-connection controls include air gaps, backflow preventers, vacuum breakers and
Choose one answer.
a. gate valves
b. indirect waste piping
c. air vents
d. water meters - CORRECT ANSWERS indirect waste piping
Question 9
, NEHA RS/REHS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% ACCURATE
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Marks: 1
The protection of personnel and the immediate laboratory environment from exposure to
infectious agents by good microbiological technique and safety equipment is called
Choose one answer.
a. primary containment
b. secondary containment
c. tertiary containment
d. none of the above - CORRECT ANSWERS primary containment
Question 10
Marks: 1
In unsewered areas, the responsibility for water and sewer for new subdivisions is assigned to
the
Choose one answer.
a. local department of public works
b. local government
c. new owners
LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% ACCURATE
VERIFIED BEST RATED A+ FOR SUCCESS
Question 4
Marks: 1
The Medical Waste Tracking Act of 1988, which amended the Solid Waste Disposal Act,
required ______ to establish a two year demonstration program for tracking medical waste in
selected states.
Choose one answer.
a. CDC
b. USDA/APHIS
c. EPA
d. none of the above - CORRECT ANSWERS EPA
Question 5
Marks: 1
Excessive condensation, corrosion, and mildew occur when the relative humidity exceeds
Choose one answer.
a. 20 percent
b. 40 percent
,NEHA RS/REHS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% ACCURATE
VERIFIED BEST RATED A+ FOR SUCCESS
c. 80 percent
d. 60 percent - CORRECT ANSWERS 60 percent
Question 6
Marks: 1
A biohazard is
Choose one answer.
a. any material that negatively impacts a biological organism
b. a material of biological composition, especially if infective, that constitutes a threat to
humans or their environment
c. a chemical that constitutes a threat to man or his environment
d. any virus that causes fatal disease - CORRECT ANSWERS a material of biological
composition, especially if infective, that constitutes a threat to humans or their environment
Question 7
Marks: 1
To prevent chimney backdrafts, the chimney must be constructed ______ inches above the
highest point of the roof at a minimum.
Choose one answer.
,NEHA RS/REHS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% ACCURATE
VERIFIED BEST RATED A+ FOR SUCCESS
a. 4 inches
b. 8 inches
c. 24 inches
d. 48 inches - CORRECT ANSWERS 24 inches
Question 8
Marks: 1
Cross-connection controls include air gaps, backflow preventers, vacuum breakers and
Choose one answer.
a. gate valves
b. indirect waste piping
c. air vents
d. water meters - CORRECT ANSWERS indirect waste piping
Question 9
, NEHA RS/REHS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% ACCURATE
VERIFIED BEST RATED A+ FOR SUCCESS
Marks: 1
The protection of personnel and the immediate laboratory environment from exposure to
infectious agents by good microbiological technique and safety equipment is called
Choose one answer.
a. primary containment
b. secondary containment
c. tertiary containment
d. none of the above - CORRECT ANSWERS primary containment
Question 10
Marks: 1
In unsewered areas, the responsibility for water and sewer for new subdivisions is assigned to
the
Choose one answer.
a. local department of public works
b. local government
c. new owners
