CRCST Quiz Questions
Accredited by the ANSI and the NCCA, the Certified Registered Central Service Technician is designed by IAHCSMM to recognise individuals who have demonstrated the experience, knowledge and skillset necessary to provide competent services as a Central Service Technician.
- 1.
Which of the following is a system used to treat the final rinse water used for cleaning?
- A.
Water conductivity
- B.
Sanitization
- C.
Deionization
- D.
Sterilization
Correct Answer
C. Deionization -
- 2.
Bluish or rainbow-type stains are caused by _______ in water.
- A.
Chlorides and solids
- B.
Iron and silicates
- C.
Calcium
- D.
Fluoride
Correct Answer
B. Iron and silicates -
- 3.
The ideal level of silicates in water used for cleaning is _______ ppm or less
- A.
200
- B.
150
- C.
100
- D.
50
Correct Answer
C. 100 -
- 4.
Purified water should have a ph of_______.
- A.
4.5-5.5
- B.
5.5-6.5
- C.
6.5-7.5
- D.
7.5-8.5
Correct Answer
C. 6.5-7.5 -
- 5.
Tap water should ideally have a chloride concentration of _____ ppm or less.
- A.
200
- B.
150
- C.
100
- D.
50
Correct Answer
C. 100 -
- 6.
Water purification usually involves the use of a:
- A.
Pre-filter
- B.
Post-filter
- C.
Pre-filter or post-filter
- D.
Pre-and post-filter
Correct Answer
D. Pre-and post-filter -
- 7.
Water that is turbid is:
- A.
Hot
- B.
Tepid
- C.
Clear
- D.
Cloudy
Correct Answer
D. Cloudy -
- 8.
Water softeners are used to remove _______ in the water.
- A.
Iron and pyrogens
- B.
Silicates and pyrogens
- C.
Chloride and iron
- D.
Calcium and magnesium
Correct Answer
D. Calcium and magnesium -
- 9.
Deionized water is used for:
- A.
Sterile irrigation
- B.
Heating/cooling therapy units
- C.
Injection
- D.
Steam sterilizers
Correct Answer
B. Heating/cooling therapy units -
- 10.
Which of the following can be removed from water when reverse osmosis process is used?
- A.
Bacteria
- B.
Pyrogens
- C.
Endotoxins
- D.
All of the above
Correct Answer
D. All of the above -
- 11.
Multi-enzymatic cleaning products containing lipase are useful for cleaning:
- A.
Protein soils
- B.
Starches
- C.
Fats
- D.
Sugars
Correct Answer
C. Fats -
- 12.
Which of the following kills microorganisms?
- A.
Soaps
- B.
Detergents
- C.
Germicidal presoaks
- D.
Enzyme presoaks
Correct Answer
C. Germicidal presoaks -
- 13.
The process of pre-cleaning should begin:
- A.
As soon as devices reach the Central Service area
- B.
Immediately after the completion of an invasive procedure
- C.
Immediately after instruments are inspected
- D.
Before items are sorted
Correct Answer
B. Immediately after the completion of an invasive procedure -
- 14.
The main purpose of manual cleaners is to:
- A.
Kill microorganisms
- B.
Remove soil
- C.
Reduce cleaning costs
- D.
Provide back-ups if automated equipment is not working
Correct Answer
B. Remove soil -
- 15.
Which of the following techniques for brushing instruments should be used?
- A.
Brushing should be done under water
- B.
Brushing should be done above water
- C.
Brushing should be done against the grain of the device
- D.
Brushes made of wire are the best because of their exceptional cleaning ability
Correct Answer
A. Brushing should be done under water -
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Current Version
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Mar 16, 2022Quiz Edited by
ProProfs Editorial Team -
Oct 09, 2015Quiz Created by
Leightoncst
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