Nitrogen Is the Largest Component of Atmospheric (Room)air

question 18

Multiple Choice

Nitrogen is the largest component of atmospheric (room) air.This concentration of nitrogen gas in the air is physiologically important to the mechanics of respiration for which of the following reasons?

• A) Nitrogen is the gas that drives our respiration.
• B) Nitrogen maintains the patency of the alveoli.
• C) Nitrogen is a substitute for oxygen at higher elevations.
• D) Nitrogen is the gas responsible for the ozone layer.

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Definitions:

Non-uniform Rotation

occurs when an object rotates at varying speeds, often leading to mechanical vibrations or inefficiencies in machinery.

U-joints

Universal joints, flexible pivots that allow the transmission shaft to transmit power at an angle.

Electronic Inclinometer

A device used to measure angles of slope (or tilt), elevation, or depression of an object with respect to gravity's direction.

Operating Angles

Operating angles refer to the angles at which joints or mechanisms in a system, such as driveshafts in a vehicle, are designed to operate efficiently and without excessive wear.