A Community Picnic Is Held

question 28

Multiple Choice

A community picnic is held.A number of the attendees become ill after the picnic.The pathogen in this case was acquired via:

• A) Indirect contact
• B) Common vehicle
• C) Airborne transmission
• D) Vector transmission

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Definitions:

Refrigerants

Fluids used in air conditioning and refrigeration systems to absorb and transport heat.

R-134a

A hydrofluorocarbon refrigerant used in air conditioning systems, known for its low impact on the ozone layer compared to previously used refrigerants.

Manifold Gauge Set

The shop station used to recycle, recharge, and diagnose A/C systems.

Hand Valves

Devices that control the flow of fluid through pipes or tubing, manually operated by a person.