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CHE BOARDS > Day 2 > Flashcards

Day 2 Flashcards

Reviewer

1
Q

Other name for Yamatake System

A

azbil

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2
Q

What is used in ultrasonic flow meters?

A

Doppler

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3
Q

Which type of body is independent of temperature and wavelength?

A

gray body

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4
Q

Electronic noise inside an electric conductor which is independent of applied voltage

A

Johnson Noise

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5
Q

Difference between measured value and set point

A

error

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6
Q

Which industry produces electricity aside from its main product?

A

sugar industry

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7
Q

system for prediction of non- electrolyte activity in non ideal mixtures

A

UNNIFAC method

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8
Q

Importance of SCADA

A

automation

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9
Q

Other term for Galvanic corrosion

A

Bimetallic corrosion

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10
Q

What is above the feed plate

A

Rectifying Section

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11
Q 
Material of Construction:
Austenitic -
Ferritic - 
Martensitic - 
Duplex -
A

Austenitic - Most popular
Ferritic - Cost less
Martensitic - requires pre-heating and postweld
Duplex - higher yield strength

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12
Q

Example of Hagreave’s Process

A

Production of Sodium Sulfate (Na2SO4)

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13
Q

If the concentration of the reactant increases, the half-life decreases. What is the order of the reaction?

A

2nd Order Reaction

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14
Q

At what order is the reaction time directly proportional to the concentration of the reactant?

A

Zero Order Reaction

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15
Q

How is fluctuation in the process controlled?

A

Equipping the instrument with integral control

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16
Q

Definition of Noise in Process Control

A

Noise makes the process variable appear to deviate from the setpoint whether any real disturbance is at work or not.

17
Q

Temperature in which the Reactor condition cannot be controlled

A

Runaway Temperature

18
Q

Which is an example of Pseudo Plastic fluid?

a. applesauce
b. tap water
c. rubber latex
d. sewage sludge

A

a. Applesauce

19
Q

Product of distillation of Coal tar

A

Phenol

20
Q

Simplest type of controller expressed as On/Off

A

Bang Bang

21
Q

What is the Boudouard Reaction?

A

It is the disproportionation of carbon monoxide into carbon dioxide and graphite or its reverse

2CO CO2 + C

22
Q

Type of Fluid that decreases Shear rate over time

A

Dilatant (Shear Thickening)

23
Q

What is a Refractory Material?

Composition of the following:
A. Acidic Refractories
B. Basic Refractories

A

A mineral that is resistant to decomposition by heat, pressure, or chemical attack, most commonly applied to a mineral that retains strength and form at high temperatures.

A. Alumina (Al2O3), and Silica (SiO2)
B. CaO, MgO, etc

24
Q

Glass that does not break when heated and then cooled

A

Tempered glass

25
Q

Variable deviation from set point

A

Noise

26
Q

Control used in fluctuations

A

Integral Control

27
Q

Noise inside an electrical conductor

A

Johnson Noise

28
Q

What is Error in process control?

A

difference between set-point and process variable

CHE BOARDS (2 decks)

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