Asbestos Contractor/Supervisor Practice Exam

What is the procedure called when covering the exhalation port on the respirator and exhaling to perform a test?

1. Positive Pressure Test

2. Negative Pressure Test

3. Exhalation Test

4. Respiratory Fit Test

The correct answer is: Positive Pressure Test

The procedure of covering the exhalation port on a respirator while exhaling is known as the Positive Pressure Test. This test is performed to check for leaks and ensure that the respirator provides an effective seal against the wearer’s face. By covering the exhalation port, the user can create a positive pressure inside the respirator; if the mask is properly fitted and there are no leaks, the facepiece will bulge out slightly. This test reinforces the importance of having a good fit for protective respiratory equipment, as any leaks could compromise the protective barrier and allow hazardous substances to enter the respirator. It is an essential part of ensuring the device will function correctly in an environment where asbestos or other harmful particles may be present. The other options refer to different types of testing or procedures. The Negative Pressure Test, for instance, involves inhaling with the respirator on to check for any inward leakage, while a Respiratory Fit Test encompasses a variety of methods and procedures to determine how well a respirator fits the wearer, which may include both quantitative and qualitative assessments. The Exhalation Test is not a commonly recognized procedure in this context.