Air Which Resists Vertical Displacements Is Considered to Be​

question 24

Multiple Choice

Air which resists vertical displacements is considered to be​

• A)stable.
• B)unstable.
• C)​neutral.
• D)​supersaturated.
• E)​entrained.

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Definitions:

Relay

An electrically operated device that mechanically switches electric circuits.

Final Control Element

A device that directly manipulates a process variable to achieve a desired change, such as a valve or a motor.

Proportional Controller

A type of feedback controller that generates an output signal by multiplying the error between a desired setpoint and a measured process variable by a constant.

On/Off Control

A basic form of control used in various applications where the output is simply turned on or off, without intermediate states.