HAZWOPER 40: Lesson 7 Quiz Questions With All
Correct Answers
The two main types of positive-pressure respirators are pressure-demand
and: correct answer -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: correct answer -
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 second type of test is the: correct answer -
Cartridges usually attach directly to the respirator face-piece. The larger
volume canisters attach to the chin of the face-piece or are carried with a
harness and attached to the face-piece by: correct answer -A breathing
tube
The Assigned Protection Factor (APF) is determined experimentally by
measuring face-piece seal and: correct answer -Exhalation valve leakage
Air-purifying respirators have limited use at hazardous waster sites and can
be used only when the ambient atmosphere contains sufficient oxygen that is
greater than (blank) percent. correct answer -19.5
The main disadvantage of negative-pressure respirators is that, if any leaks
develop, the user: correct answer -Draws contaminated air into the face-
piece during inhalation
A SAR is NOT recommended for entry into IDLH atmospheres unless the
apparatus is equipped with: correct answer -An escape SCBA
The combination system provides up to 60 minutes of self-contained air,
whereas the escape SCBA contains much less air, generally for how many
minutes? correct answer -5 minutes
Correct Answers
The two main types of positive-pressure respirators are pressure-demand
and: correct answer -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: correct answer -
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 second type of test is the: correct answer -
Cartridges usually attach directly to the respirator face-piece. The larger
volume canisters attach to the chin of the face-piece or are carried with a
harness and attached to the face-piece by: correct answer -A breathing
tube
The Assigned Protection Factor (APF) is determined experimentally by
measuring face-piece seal and: correct answer -Exhalation valve leakage
Air-purifying respirators have limited use at hazardous waster sites and can
be used only when the ambient atmosphere contains sufficient oxygen that is
greater than (blank) percent. correct answer -19.5
The main disadvantage of negative-pressure respirators is that, if any leaks
develop, the user: correct answer -Draws contaminated air into the face-
piece during inhalation
A SAR is NOT recommended for entry into IDLH atmospheres unless the
apparatus is equipped with: correct answer -An escape SCBA
The combination system provides up to 60 minutes of self-contained air,
whereas the escape SCBA contains much less air, generally for how many
minutes? correct answer -5 minutes
