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INST 202 > One more quiz > Flashcards

One more quiz Flashcards

1
Q

Gauge Pressure

A

Pressure measured with atmospheric pressure as the zero point of the scale

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2
Q

Atmospheric Pressure

A

The pressure due to the mass of the atmosphere above the point where it is being measured

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3
Q

Absolute Pressure

A

Pressure measured with a perfect vacuum as the zero point of the scale

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4
Q

Vacuum Pressure

A

Pressure less than atmospheric pressured measured with atmospheric pressure as the zero point of the scale

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5
Q

Hydrostatic pressure

A

The pressure due to head of a column of liquid

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6
Q

Head Pressure

A

The actual height of a column of liquid

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7
Q

Differential pressure

A

The difference in pressure between two measurement points in a process point

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8
Q

pneumatic pressure

A

The pressure of air or other gases

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9
Q

Operating pressure

A

The actual pressure a device operates under normal conditions

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10
Q

Hydraulic pressure

A

The pressure of a confined liquid that has been subjected to the action of a pump or piston

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11
Q

zero adjustment

A

Means provided in an instrument to produce a parallel shift of the input output curve

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12
Q

LRV

A

The lowest value of the input or output

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13
Q

Linearity

A

Describes the closeness with witch the relationship between the input and output of an instrument represents a straight line

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14
Q

Range

A

Represents the limits, input and output, of the instrument

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15
Q

Final Control Element (FCE)

A

Physical device that affects changes in the manipulated variable

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16
Q

Disturbance

A

Change in the process which affects the value of the controlled variable

17
Q

Span

A

Algebraic difference between the URV and LRV

18
Q

Error (Deviation)

A

The algebraic difference between the indication and the ideal value of the measurement signal

19
Q

Span adjustment

A

Means provide in an instrument to change the slope of the input-output curve

20
Q

Transmitter

A

Convert signal from sensing element to a suitable output signal for processing by the controller

21
Q

Transducer

A

A device that converts information of one physical form to another physical type on its output

22
Q

URV

A

The highest value of the input or output

23
Q

Variable

A

A level, quantity, or other condition that is subject to change

24
Q

Set Point

A

Desired value of the controlled variable

25
Q

Process Control

A

Manipulation of the energy or material input/output relationship to keep the controlled variables within the desired value

INST 202 (12 decks)

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