HAZWOPER 40 Lesson 7 Quiz Verified Solutions
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HAZWOPER 40 Lesson 7 Quiz Verified Solutions 
**Respiratory Protection** 
1. What are the two main types of positive-pressure respirators? 
Pressure-demand and continuous flow 
2. Which type of assembly is approved by MSHA and NIOSH to protect against organic vapors, and is 
tested against only a single challenge substance? 
Assembly tested against stannic chloride 
3. What are the two types of fit tests that can be performed? 
Qualitative fit test (exposing wearer to irritants or substa...