Which Types of Respiratory Protection Are Atmosphere-Supplying Respirators Where the User

question 13

Multiple Choice

Which types of respiratory protection are atmosphere-supplying respirators where the user does not carry the breathing air source?

• A) Escape respirators
• B) Supplied-air respirators (SARs)
• C) Air-purifying respirators (APRs)
• D) Powered air-purifying respirators (PAPRs)

---

Definitions:

Machine-Hours

A measure of production time using machinery; used as a basis for allocating manufacturing overhead costs to products.

Machine-Hours

A measure of the total time that machines are operating during a specific period.

Direct Labor-Hours

The total amount of time spent by workers directly involved in the production of goods, measured in hours.

Total Job Cost

The cumulative cost of materials, labor, and overhead for a specific job, useful in tracking expenses and determining profitability for that job.