ALAT Unit 2 Exam Questions with

ALAT Unit 2 Exam Questions with Complete Solutions (Latest 2025) What is the definition of "sanitization"?

• The elimination of all microorganisms through heat and

pressure

• The destruction of all measurable microorganisms on a

surface or - object

• The reduction of the number of microorganisms on a

surface or - object

• The cleaning of an object with water hot enough to reduce
• microorganisms significantly - Correct Answers ✅C. The

reduction of the number of microorganisms on a surface or object If a chemical ends in "cide", what kind of chemical is it?

• A sterilant
• A detergent
• A disinfectant
• A. pesticide - Correct Answers ✅C. A disinfectant

What type of cage washer is best used for cleaning large numbers of smaller pieces of equipment such as rodent cages or feed bowls?

• A tunnel washer 1 / 3

ALAT Unit 2 Exam Questions with Complete Solutions (Latest 2025)

• A rack washer
• A cabinet washer
• A bottle washer - Correct Answers ✅A. A tunnel washer

What is NOT necessarily true about cleaning animal rooms?

• The animals may need to be removed from the room

during cleaning.

• Each room should have its own set of cleaning equipment.
• Every animal room should be cleaned once per week.
• Cleaning and sanitization logs should be filled out after

cleaning - the room. - Correct Answers ✅C. Every animal room should be cleaned once per week.Why are vermin a problem in animal facilities?

• They can eat lab feed, which wastes facility funds
• They can spread disease to the laboratory animals
• They are upsetting for researchers to see
• Their waste is a mess to clean up - Correct Answers ✅B.

They can spread disease to the laboratory animals What must be done before disinfecting an object with bleach? 2 / 3

ALAT Unit 2 Exam Questions with Complete Solutions (Latest 2025)

• Debris and organic matter must be removed
• It should be sprayed down with alcohol
• All PPE should be removed
• It should be autoclaved first - Correct Answers ✅A.

Debris and organic matter must be removed What is the most sensitive method to monitor autoclave effectiveness?

• Using a biological indicator
• Monitoring the pressure gauge on the autoclave
• Timing how long the items are in the autoclave

Applying autoclave tape on the items to be sterilized - Correct Answers ✅A. Using a biological indicator What are the three processes used to either remove or kill microorganisms?

• Sanitation, disinfection, sterilization
• Disinfection, depopulation, cultivation
• Sterilization, depopulation. sanitation
• Depopulation, starvation, sterilization - Correct Answers

✅A. Sanitation, disinfection, sterilization

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