What Is the Major Cause of Chronic Bronchitis

question 9

Multiple Choice

What is the major cause of chronic bronchitis?

• A) Smoking
• B) Infection
• C) Air pollution
• D) Family history

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Definitions:

Psig

Pounds per square inch gauge. Gauge pressure is equivalent to psi, not psia.

Liquid Refrigerant

A substance in liquid form used in refrigeration cycles to absorb and remove heat from a space to cool it.

Ambient Temperatures

The temperatures of the air or environment in which equipment, devices, or materials are situated, affecting their performance and operational requirements.

High-Side

In electrical systems, refers to the part of a circuit that is at a higher potential relative to a common ground.