CSMLS MLA PRACTICE TEST 1 EXAM 2025|Actual Exam
CSMLS MLA Practice Test 1
Test(MULTIPLE CHOICES) and (RATIONALES) questions and verified
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answers |GET IT 100% ACCURATE!!
1. Sterilization by dry heat is performed at how B.) 170
many degrees Celsius? Dry heat sterilization is generally done
A.) 100 at 160-170 degrees Celsius
B.) 170
C.) 240
D.) 310
E.) 380
2. What is the most widely used sterilization A.) Autoclaving
method in clinical laboratories?
A.) Autoclaving
B.) Boiling
C.) Chemical Sterilization
D.) Dry Heat Oven
E.) Ionizing Radiation
3. When using the autoclave, you should put B.) In the centre of each article
sterilization strips:
A.) Close to the air exhaust valve
B.) In the centre of each article
C.) On the bottom shelf of the autoclave
D.) On the outside of each pack
E.) Outside the autoclave
4. Which of the following should be observed C.) Make sure complete burning takes
during incineration? place
A.) Disinfect all articles before burning them
B.) Make sure at least three people are pre-
sent
C.) Make sure complete burning takes place
D.) Make sure the temperature reaches at
, CSMLS MLA Practice Test 1
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least 120 degrees Celsius
E.) Sanitize all articles before burning them
5. Which statement about radiation hazards is B.) Radiation accidents may be difficult
true? to recognize
A.) Large amounts of radiation are used in the
RIA department
B.) Radiation accidents may be difficult to rec-
ognize
C.) Radiation does not affect a fetus
D.) Radiation guidelines are set by the Food
and Drug Act
E.) Radiation is not transferred into the body
6. Acid spills should be neutralized with: D.) Sodium bicarbonate
A.) Acetic acid Acid spills should be neutralized with a
B.) Boric acid weak base (e.g., sodium bicarbonate)
C.) Potassium chlorate and then cleaned up with a paper tow-
D.) Sodium bicarbonate el.
E.) Sodium hydroxide
7. TLV is the concentration of a substance that: B.) A worker can be exposed to over
A.) A worker can be exposed to for one hour a working lifetime without adverse ef-
without adverse effect fect
B.) A worker can be exposed to over a working TLV (Threshold Limit Value) is the level
lifetime without adverse effect that workers can be exposed to dai-
C.) Kills all test animals ly over a working lifetime without ad-
D.) Kills half of test animals verse effects.
E.) Makes half of human test subjects sick
8. Which of these is a good practice when work- A.) Wear eye protection.
ing with strong acids? *Latex gloves are NOT acid-resistant.
A.) Wear eye protection **You should NEVER add water to acid
, CSMLS MLA Practice Test 1
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B.) Wear latex gloves because this could cause the acid to
C.) Wear open-toed shoes boil violently.
D.) When mixing acid and water, always add
the water to the acid. NOT the other way
around.
9. Red on an NFPA chemical label indicates a: C.) Fire Hazard
A.) Acid hazard Red = Fire Hazard
B.) Carcinogen Blue = Health Hazard
C.) Fire Hazard Yellow = Reactivity/Instability Hazard
D.) Fume Hazard White = Specific/Special Hazard
E.) Poison Hazard
10. What is the term for chemical that can burn or B.) Caustic
destroy tissue?
A.) Cancerous
B.) Caustic
C.) Magnetic
D.) Pathogenic
E.) Poisonous
11. What type of filter is used tin biological safety D.) HEPA
cabinets? *High Efficiency Particulate Air (Filter)
A.) Charcoal
B.) Electrostatic
C.) Fiberglass
D.) HEPA
E.) UV Light
12. Class B fires occur with: B.) Flammable liquids
A.) Electrical equipment *Class A = Ordinary combustible mate-
B.) Flammable liquids rials
C.) Glassware **Cass B = Flammable liquids/gases
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D.) Ordinary combustibles ***Class C = Electrical equipment
E.) Reactive metals ****Class D = Flammable metallic sub-
stances (e.g., Na and K)
13. Class II(2) Biological Specimen containment B.) A class 2 biosafety cabinet
should be performed in:
A.) A class 1 biosafety cabinet
B.) A class 2 biosafety cabinet
C.) A class 3 biosafety cabinet
D.) A laminar flow hood
14. What does WHMIS stand for? B.) Workplace Hazardous Materials In-
A.) Women's Health and Maternity Inservice formation System
System *WHMIS is Canada's national hazard
B.) Workplace Hazardous Materials Informa- communication standard.
tion System
C.) Workplace Health Monitoring and Infor-
mational Services
D.) World Health Messages for the Informed
Society
E.) World Human Meningitis Infection Surveil-
lance
15. Which of these is a strong acid? E.) Sulfuric Acid
A.) Acetic Acid *There are only SEVEN strong acids:
B.) Carbonic Acid hydrochloric acid, nitric acid, sulfu-
C.) Nitrous Acid ric acid, hydrobromic acid, hydroiodic
D.) Pyruvic Acid acid, perchloric acid and chloric acid.
E.) Sulfuric Acid
16. In which of these situations should safety gog- B.) During reagent and specimen
gles be worn? preparation
A.) During blood collections
CSMLS MLA Practice Test 1
Test(MULTIPLE CHOICES) and (RATIONALES) questions and verified
Study online at https://quizlet.com/_bgc4q7
answers |GET IT 100% ACCURATE!!
1. Sterilization by dry heat is performed at how B.) 170
many degrees Celsius? Dry heat sterilization is generally done
A.) 100 at 160-170 degrees Celsius
B.) 170
C.) 240
D.) 310
E.) 380
2. What is the most widely used sterilization A.) Autoclaving
method in clinical laboratories?
A.) Autoclaving
B.) Boiling
C.) Chemical Sterilization
D.) Dry Heat Oven
E.) Ionizing Radiation
3. When using the autoclave, you should put B.) In the centre of each article
sterilization strips:
A.) Close to the air exhaust valve
B.) In the centre of each article
C.) On the bottom shelf of the autoclave
D.) On the outside of each pack
E.) Outside the autoclave
4. Which of the following should be observed C.) Make sure complete burning takes
during incineration? place
A.) Disinfect all articles before burning them
B.) Make sure at least three people are pre-
sent
C.) Make sure complete burning takes place
D.) Make sure the temperature reaches at
, CSMLS MLA Practice Test 1
Study online at https://quizlet.com/_bgc4q7
least 120 degrees Celsius
E.) Sanitize all articles before burning them
5. Which statement about radiation hazards is B.) Radiation accidents may be difficult
true? to recognize
A.) Large amounts of radiation are used in the
RIA department
B.) Radiation accidents may be difficult to rec-
ognize
C.) Radiation does not affect a fetus
D.) Radiation guidelines are set by the Food
and Drug Act
E.) Radiation is not transferred into the body
6. Acid spills should be neutralized with: D.) Sodium bicarbonate
A.) Acetic acid Acid spills should be neutralized with a
B.) Boric acid weak base (e.g., sodium bicarbonate)
C.) Potassium chlorate and then cleaned up with a paper tow-
D.) Sodium bicarbonate el.
E.) Sodium hydroxide
7. TLV is the concentration of a substance that: B.) A worker can be exposed to over
A.) A worker can be exposed to for one hour a working lifetime without adverse ef-
without adverse effect fect
B.) A worker can be exposed to over a working TLV (Threshold Limit Value) is the level
lifetime without adverse effect that workers can be exposed to dai-
C.) Kills all test animals ly over a working lifetime without ad-
D.) Kills half of test animals verse effects.
E.) Makes half of human test subjects sick
8. Which of these is a good practice when work- A.) Wear eye protection.
ing with strong acids? *Latex gloves are NOT acid-resistant.
A.) Wear eye protection **You should NEVER add water to acid
, CSMLS MLA Practice Test 1
Study online at https://quizlet.com/_bgc4q7
B.) Wear latex gloves because this could cause the acid to
C.) Wear open-toed shoes boil violently.
D.) When mixing acid and water, always add
the water to the acid. NOT the other way
around.
9. Red on an NFPA chemical label indicates a: C.) Fire Hazard
A.) Acid hazard Red = Fire Hazard
B.) Carcinogen Blue = Health Hazard
C.) Fire Hazard Yellow = Reactivity/Instability Hazard
D.) Fume Hazard White = Specific/Special Hazard
E.) Poison Hazard
10. What is the term for chemical that can burn or B.) Caustic
destroy tissue?
A.) Cancerous
B.) Caustic
C.) Magnetic
D.) Pathogenic
E.) Poisonous
11. What type of filter is used tin biological safety D.) HEPA
cabinets? *High Efficiency Particulate Air (Filter)
A.) Charcoal
B.) Electrostatic
C.) Fiberglass
D.) HEPA
E.) UV Light
12. Class B fires occur with: B.) Flammable liquids
A.) Electrical equipment *Class A = Ordinary combustible mate-
B.) Flammable liquids rials
C.) Glassware **Cass B = Flammable liquids/gases
, CSMLS MLA Practice Test 1
Study online at https://quizlet.com/_bgc4q7
D.) Ordinary combustibles ***Class C = Electrical equipment
E.) Reactive metals ****Class D = Flammable metallic sub-
stances (e.g., Na and K)
13. Class II(2) Biological Specimen containment B.) A class 2 biosafety cabinet
should be performed in:
A.) A class 1 biosafety cabinet
B.) A class 2 biosafety cabinet
C.) A class 3 biosafety cabinet
D.) A laminar flow hood
14. What does WHMIS stand for? B.) Workplace Hazardous Materials In-
A.) Women's Health and Maternity Inservice formation System
System *WHMIS is Canada's national hazard
B.) Workplace Hazardous Materials Informa- communication standard.
tion System
C.) Workplace Health Monitoring and Infor-
mational Services
D.) World Health Messages for the Informed
Society
E.) World Human Meningitis Infection Surveil-
lance
15. Which of these is a strong acid? E.) Sulfuric Acid
A.) Acetic Acid *There are only SEVEN strong acids:
B.) Carbonic Acid hydrochloric acid, nitric acid, sulfu-
C.) Nitrous Acid ric acid, hydrobromic acid, hydroiodic
D.) Pyruvic Acid acid, perchloric acid and chloric acid.
E.) Sulfuric Acid
16. In which of these situations should safety gog- B.) During reagent and specimen
gles be worn? preparation
A.) During blood collections
