Protective Breathing Devices Are Being Discussed

question 177

Multiple Choice

Protective breathing devices are being discussed. Technician A states that a person should use a disposable dust mask when grinding off rust or when working is dusty conditions. Technician B states that a person should use a respirator when painting. Who is correct?

• A) Technician A
• B) Technician B
• C) Both A and B
• D) Neither A nor B

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Definitions:

Output

The total amount of goods or services produced by a company, system, or economic process.

Marginal Product

The additional output that is produced by using one more unit of a particular input, ceteris paribus.

Fertilizer

A substance used to enhance the growth of plants and increase yield by supplying essential nutrients.

Bushels

A unit of volume that is used for quantities of dry commodities (such as grains or produce), where the capacity varies according to the commodity.