Instrumentation Flashcards

1
Q

Cannot be broken down into simpler substance/Pure substance with one type atom.

A

Element

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2
Q

Smallest particle of an element

A

Atom

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3
Q

Group of atoms with a + or - charge.

A

Ion

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4
Q

Ph under 7

A

Acid

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5
Q

Ph over 7

A

Alkaline (base)

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6
Q

Amount of water in the air.

A

Moisture

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7
Q

Measure of a chemical or physical properties.

A

Analytical

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8
Q

What is Kinetic Energy?

A

Energy of motion

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9
Q

What method of Heat Transfer uses fluid?

A

Convection

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10
Q

What method of Heat Transfer does not require matter?

A

Radiation

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11
Q

What method of Heat Transfer uses direct contact?

A

Conduction

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12
Q

T/F Heat always flows for low temperature to high temperature.

A

False, travels from high to low.

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13
Q

What is the purpose of a Thermowell?

A

Inserted into piping/equipment to measure temperature by measuring elements.

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14
Q

What is the electromagnetic Spectra?

A

A range of frequencies of electromagnetic radiation.

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15
Q

T/F An RTD is more accurate than a Thermocouple.

A

TRUE

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16
Q

What instrument uses its own buoyance force to measure level?

A

Displacer

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17
Q

If the mass of remains constant and the density of a liquid in a tank decreases, the level of liquid in the tank ___.

A

Increases

18
Q

When the volume of a liquid in a tank decreases, the level of the liquid in the tank ___.

A

Decreases

19
Q

When other instruments are unsuccessful to measure level, we turn to ___ devices.

A

Nuclear

20
Q

A gage that senses the surface of a material is a ___.

A

Floating

21
Q

Most common device to measure different pressure points.

A

D/P cell

22
Q

What is the formula to calculate the Flow Rate of a liquid?

A

Volume/Time

23
Q

What type of flow meters is the most commonly used in the process industry?

A

Differential Pressure (D/P)

24
Q

Electromagnetic flow meters are generally used with what type of liquid?

A

Aqueous material (conductive liquids, slurries, corrosive/abrasive materials.

25
Q

A primary element used in piping to create differential pressure is called ___ ___.

A

Venturi Tube

26
Q

A Reynolds Number is used to determine whether flow is ___ or ___.

A

Laminar or Turbulence

27
Q

T/F When a flowing fluid possesses a Reynolds Number greater than 4,000 it is considered to be laminar.

A

FALSE

28
Q

Special flanges to mount orifice plates are called ___ flanges.

A

Orifice

29
Q

If the flow rate through an orifice doubles the differential pressure.

A

Quadruples

30
Q

CH₄

A

Methane

31
Q

C₂H₆

A

Ethane

32
Q

C₃H₈

A

Propane

33
Q

C₄H₁₀

A

Butane

34
Q

What is a Hydrometer used for?

A

Measures specific gravity

35
Q

Property of matter by which it continues at rest or uniform motion unless it is changed by an external force.

A

Inertia

36
Q

The amount of matter in a body

A

Mass

37
Q

The density of a substance relative to the density of water.

A

Specific Gravity

38
Q

When measuring pressure - 1 psi = ____ in. H₂O = ___.

A

(27.7/13) /// (2.04)

39
Q

What are the 5 elements we can control in a control look?

A

Temperature, Flow, Pressure, Level and Analytical

40
Q

The ability or tendency to float in water, air or other fluid.

A

Buoyancy

41
Q

Pressure into an electrical signal

A

Transducer. (I/P)