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HAZWOPER 40: Lesson 7 Exam Questions and Answers
NewHAZWOPER 40: Lesson 7 Quiz 
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The two main types of positive-pressure respirators are 
pressure-demand and: Continuous flow 
The assembly that has been approved by MSHA and 
NIOSH to protect against organic vapors is tested against 
only a single challenge substance. That substance is: 
Two types of fit tests can be performed. The first is a qualitative fir test, which exposes the wearer to irritants (stannic chloride) or substances that have distinctive odors or 
tastes. The seco...