CNIH BIO 140 Chapters 12 & 13 Exam With 100% Correct Answers 2025/2026

CNIH BIO 140 Chapters 12 & 13 Exam With 100% Correct Answers 2025/2026 1. How should one load a sterilizer? A. Place the packages on their edges. B. Pack the packages tight to eliminate as much air as possible. C. Stack the packages on top of the other. D. Put only one package at a time in the sterilizer. - answer-A. Place the packages on their edges. 2. The rationale for packaging instruments before placing them into a sterilizer is to: A. eliminate water spots B. maintain their sterility after sterilization C. prevent rusting of carbon steel items D. reduce by half the time needed at the sterilizing temperature - answer-B. maintain their sterillity after sterilization 3. Spores of Geobacillus stearothermophilus are used to monitor what types of sterilizers? A. Steam and dry heat B. Unsaturated chemical vapor and dry heat C. Unsaturated chemical vapor and steam - answer-C. Unsaturated chemical vapor and steam 4. What type of sterilization causes steel instruments to rust? A. Steam B. Dry heatC. Unsaturated chemical vapor D. Ethylene oxide gas - answer-A. Steam 5. How should one sterilize a plastic rubber dam frame? A. Steam B. Dry heat C. Unsaturated chemical vapor D. Liquid sterilant such as glutaraldehyde - answer-D. Liquid sterilant such as glutaraldehyde