Texas RS EXAM STUDY GUIDE
2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Muerto Canyon virus (MCV) is a Hantavirus mainly carried by... -
ANSWER ✔ Mice
2. The wastewater from the flushing of a water closet, latrine, or privy is
referred to as: - ANSWER ✔ Black water
3. Bloodborne pathogens are regulated by: - ANSWER ✔ OSHA
4. A negative pressure fit test for a protective mask: - ANSWER ✔ Is done by
placing both palms against the intake filters
5. Excessive condensation, corrosion, and mildew occur when the relative
humidity exceeds... - ANSWER ✔ 60%
6. Quantitative risk assessments USUALLY measure human exposure through
all of the following EXCEPT: - ANSWER ✔ Computer models
7. The maximum size of a stair riser should be: - ANSWER ✔ 8 1/4"
,8. Appropriate freezing is used to destroy... - ANSWER ✔ Parasites
9. low acid foods have a pH between... - ANSWER ✔ 4.6 -7.0
10.Which of the following is MOST effective for controlling ragweed? -
ANSWER ✔ 2, 4-D
11.A joist is used as a... - ANSWER ✔ Horizontal support
12.If the septic tank will also have a garbage disposal unit feeding into it the: -
ANSWER ✔ size of the tank should be increased 50%
13.Psittacosis is MOST commonly spread by: - ANSWER ✔ pigeons
14.What is the MAXIMUM accumulated time that potentially hazardous foods
can safely be exposed to the temperate danger zone? - ANSWER ✔ 6 hours
15.Alternative small waste water treatment systems are considered UNLESS: -
ANSWER ✔ Imperious formations are found at a depth of 10 feet.
16.The industries LEAST likely to be a source of sulfur dioxide pollution are: -
ANSWER ✔ Hazardous Waste Incinerators
17.What is the BEST means of inhibiting the growth of microorganisms in
fresh meat? - ANSWER ✔ Adequate refrigeration and cleanliness
,18.The release of genetically engineered materials to the environment is
regulated by: - ANSWER ✔ USDA & EPA
19.What footers fail this often results in: - ANSWER ✔ Cracked and/or
displaced foundations
20.Performance of an authorized act in an unauthorized manner is called: -
ANSWER ✔ Misfeasance
21.Scrubbers are wet collectors generally used to remove particles that form as
a: - ANSWER ✔ Fog, mist, or dust.
22.A biohazard is: - ANSWER ✔ A material of biological composition,
especially if infective, that constitutes a threat to people or their
environment.
23.How is the term "contamination" defined when used in connection with a
communicable disease? - ANSWER ✔ Presence of pathogenic agents on a
surface, article, or substance.
24.Why are some foods classified as potentially hazardous? - ANSWER ✔
They support rapid growth of pathogenic microorganisms.
25.The incidence of tuberculosis in English laboratory workers working with
M. tuberculosis was reported to be how many times higher than for the
general population? - ANSWER ✔ 5 times higher
, 26.The recommended and MOST effective method of maintaining pool water
quality is: - ANSWER ✔ Continuous re-circulation, chlorination, and
filtration.
27.Which respiratory device provides the BEST protection? - ANSWER ✔
Positive pressure respirator with a full face piece.
28.Hay fever is correctly referred to as: - ANSWER ✔ Pollenosis
29.Chemicals that have been used for pool disinfection include chlorine, chloro-
iso-cyanurates, bromine, and: - ANSWER ✔ Iodine
30.Typhoid is caused by: - ANSWER ✔ Salmonella
31.Stream pollution is sometimes apparent by: - ANSWER ✔ A zone of
degradation
32.All of the following are true about ozone as a disinfectant EXCEPT which
one?
Long Lasting residual
Source of dissolved oxygen
Excellent uiricide
Non-toxic to aquatic organisms - ANSWER ✔ Long lasting residual
33.Define Sterilization - ANSWER ✔ Process of killing all microorganisms,
including spores.
2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Muerto Canyon virus (MCV) is a Hantavirus mainly carried by... -
ANSWER ✔ Mice
2. The wastewater from the flushing of a water closet, latrine, or privy is
referred to as: - ANSWER ✔ Black water
3. Bloodborne pathogens are regulated by: - ANSWER ✔ OSHA
4. A negative pressure fit test for a protective mask: - ANSWER ✔ Is done by
placing both palms against the intake filters
5. Excessive condensation, corrosion, and mildew occur when the relative
humidity exceeds... - ANSWER ✔ 60%
6. Quantitative risk assessments USUALLY measure human exposure through
all of the following EXCEPT: - ANSWER ✔ Computer models
7. The maximum size of a stair riser should be: - ANSWER ✔ 8 1/4"
,8. Appropriate freezing is used to destroy... - ANSWER ✔ Parasites
9. low acid foods have a pH between... - ANSWER ✔ 4.6 -7.0
10.Which of the following is MOST effective for controlling ragweed? -
ANSWER ✔ 2, 4-D
11.A joist is used as a... - ANSWER ✔ Horizontal support
12.If the septic tank will also have a garbage disposal unit feeding into it the: -
ANSWER ✔ size of the tank should be increased 50%
13.Psittacosis is MOST commonly spread by: - ANSWER ✔ pigeons
14.What is the MAXIMUM accumulated time that potentially hazardous foods
can safely be exposed to the temperate danger zone? - ANSWER ✔ 6 hours
15.Alternative small waste water treatment systems are considered UNLESS: -
ANSWER ✔ Imperious formations are found at a depth of 10 feet.
16.The industries LEAST likely to be a source of sulfur dioxide pollution are: -
ANSWER ✔ Hazardous Waste Incinerators
17.What is the BEST means of inhibiting the growth of microorganisms in
fresh meat? - ANSWER ✔ Adequate refrigeration and cleanliness
,18.The release of genetically engineered materials to the environment is
regulated by: - ANSWER ✔ USDA & EPA
19.What footers fail this often results in: - ANSWER ✔ Cracked and/or
displaced foundations
20.Performance of an authorized act in an unauthorized manner is called: -
ANSWER ✔ Misfeasance
21.Scrubbers are wet collectors generally used to remove particles that form as
a: - ANSWER ✔ Fog, mist, or dust.
22.A biohazard is: - ANSWER ✔ A material of biological composition,
especially if infective, that constitutes a threat to people or their
environment.
23.How is the term "contamination" defined when used in connection with a
communicable disease? - ANSWER ✔ Presence of pathogenic agents on a
surface, article, or substance.
24.Why are some foods classified as potentially hazardous? - ANSWER ✔
They support rapid growth of pathogenic microorganisms.
25.The incidence of tuberculosis in English laboratory workers working with
M. tuberculosis was reported to be how many times higher than for the
general population? - ANSWER ✔ 5 times higher
, 26.The recommended and MOST effective method of maintaining pool water
quality is: - ANSWER ✔ Continuous re-circulation, chlorination, and
filtration.
27.Which respiratory device provides the BEST protection? - ANSWER ✔
Positive pressure respirator with a full face piece.
28.Hay fever is correctly referred to as: - ANSWER ✔ Pollenosis
29.Chemicals that have been used for pool disinfection include chlorine, chloro-
iso-cyanurates, bromine, and: - ANSWER ✔ Iodine
30.Typhoid is caused by: - ANSWER ✔ Salmonella
31.Stream pollution is sometimes apparent by: - ANSWER ✔ A zone of
degradation
32.All of the following are true about ozone as a disinfectant EXCEPT which
one?
Long Lasting residual
Source of dissolved oxygen
Excellent uiricide
Non-toxic to aquatic organisms - ANSWER ✔ Long lasting residual
33.Define Sterilization - ANSWER ✔ Process of killing all microorganisms,
including spores.
