| 1. Incineration |
| 2. Autoclaving |
| 3. Sharp pit encapsulation |
| 4. Precipitation |
A) 1 and 2
B) 1 and 3
C) 1, 2 and 3
D) 1, 2, 3 and 4
Correct Answer: B
Solution :
Autoclaves use pressurized steam to destroy microorganisms, and are the most dependable systems available for the decontamination of laboratory waste and the sterilization of laboratory glassware, media, and reagents. For efficient heat transfer, steam must flush the air out of the autoclave chamber. Before using the autoclave, check the drain screen at the bottom of the chamber and clean if blocked. If the sieve is blocked with debris, a layer of air may form at the bottom of the autoclave, preventing efficient operation.
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