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CSMLS MLA Practice Test 1 Questions And
Answers 100% Pass.
Sterilization by dry heat is performed at how many degrees Celsius?
A.) 100
B.) 170
C.) 240
D.) 310
E.) 380 - answer✔B.) 170
Dry heat sterilization is generally done at 160-170 degrees Celsius
What is the most widely used sterilization method in clinical laboratories?
A.) Autoclaving
B.) Boiling
C.) Chemical Sterilization
D.) Dry Heat Oven
E.) Ionizing Radiation - answer✔A.) Autoclaving
When using the autoclave, you should put 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 - answer✔B.) In the centre of each article
Which of the following should be observed during incineration?
A.) Disinfect all articles before burning them
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B.) Make sure at least three people are present
C.) Make sure complete burning takes place
D.) Make sure the temperature reaches at least 120 degrees Celsius
E.) Sanitize all articles before burning them - answer✔C.) Make sure complete burning takes place
Which statement about radiation hazards is true?
A.) Large amounts of radiation are used in the RIA department
B.) Radiation accidents may be difficult to recognize
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 - answer✔B.) Radiation accidents may be difficult to
recognize
Acid spills should be neutralized with:
A.) Acetic acid
B.) Boric acid
C.) Potassium chlorate
D.) Sodium bicarbonate
E.) Sodium hydroxide - answer✔D.) Sodium bicarbonate
Acid spills should be neutralized with a weak base (e.g., sodium bicarbonate) and then cleaned up with a
paper towel.
TLV is the concentration of a substance that:
A.) A worker can be exposed to for one hour without adverse effect
B.) A worker can be exposed to over a working lifetime without adverse effect
C.) Kills all test animals
D.) Kills half of test animals
E.) Makes half of human test subjects sick - answer✔B.) A worker can be exposed to over a working
lifetime without adverse effect
TLV (Threshold Limit Value) is the level that workers can be exposed to daily over a working lifetime
without adverse effects.
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Which of these is a good practice when working with strong acids?
A.) Wear eye protection
B.) Wear latex gloves
C.) Wear open-toed shoes
D.) When mixing acid and water, always add the water to the acid. NOT the other way around. -
answer✔A.) Wear eye protection.
*Latex gloves are NOT acid-resistant.
**You should NEVER add water to acid because this could cause the acid to boil violently.
Red on an NFPA chemical label indicates a:
A.) Acid hazard
B.) Carcinogen
C.) Fire Hazard
D.) Fume Hazard
E.) Poison Hazard - answer✔C.) Fire Hazard
Red = Fire Hazard
Blue = Health Hazard
Yellow = Reactivity/Instability Hazard
White = Specific/Special Hazard
What is the term for chemical that can burn or destroy tissue?
A.) Cancerous
B.) Caustic
C.) Magnetic
D.) Pathogenic
E.) Poisonous - answer✔B.) Caustic
What type of filter is used tin biological safety cabinets?
A.) Charcoal
B.) Electrostatic
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C.) Fiberglass
D.) HEPA
E.) UV Light - answer✔D.) HEPA
*High Efficiency Particulate Air (Filter)
Class B fires occur with:
A.) Electrical equipment
B.) Flammable liquids
C.) Glassware
D.) Ordinary combustibles
E.) Reactive metals - answer✔B.) Flammable liquids
*Class A = Ordinary combustible materials
**Cass B = Flammable liquids/gases
***Class C = Electrical equipment
****Class D = Flammable metallic substances (e.g., Na and K)
Class II(2) Biological Specimen containment 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 - answer✔B.) A class 2 biosafety cabinet
What does WHMIS stand for?
A.) Women's Health and Maternity Inservice System
B.) Workplace Hazardous Materials Information System
C.) Workplace Health Monitoring and Informational Services
D.) World Health Messages for the Informed Society
E.) World Human Meningitis Infection Surveillance - answer✔B.) Workplace Hazardous Materials
Information System
*WHMIS is Canada's national hazard communication standard.