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Worksheetspm 3.1
Total questions: 50
Worksheet time: 25mins
Name three types of automation in production systems
a)Active; flexible; Programmable
b)Programmable; flexible; fixed
c)Manual; flexible; Programmable
Which buffers we used to calibrate the pH meter in our lab?
a) 4; 7; 9
b)5; 7;10
c) 2;5;10
What is weighing device?
a)scale
b)hydrometer
c)anemometer
What device used for measuring physico-chemical quantities?
a)pH meter
b)beam balance
c)chromatography
What is used for measuring pressure?
a)double pan
b)barometer
c) colorimeter
How acids can be defined ?
a)as a proton donor
b)as a proton acceptor
c)both of them
Which of the following is the formula for pH calculation?
a)log10[H+]
b) -log2[H+]
c) -log10[H+]
How can instrumentation be divided according to the nature of the functions performed?
a)showing and recording
b)Stationary and portable
c) Electric and pneumatic
How can instrumentation be divided according to the method of application?
b)showing and recording
a)stationary and portable
c)Electric and hydraulic
Sometimes how showing and recording are combined?
a) with alarm, regulation and blocking function
b)with sensors
c)with counting
When portable devices are used?
a)when it's necessary to carry out automatic recording
b)when it's necessary to carry values
c)when it's necessary to carry each specific measurement
What is the diaphragm pressure gauge also known as ?
a)Membrane pressure gauge
b)Piezometer
c)Bourdon tube
Management operation must organize and direct ...
a)Work operation
b)Control operation
c)Manual and automatic operation
Local and automation of a set of technological processes are mainly operated into..
a)Manual with automatic control
b)Only manual one
c) Automatic with some manual
Which automation is used for high production rates?
a)Fixed
b)Flexible
c)Programmable
Which devices carry outs automatic recording of the value?
a)Recording
b)Showing
c)Electric
Thermometer is used with
a)Contact method
b)Non-contact
c)None of them
For calibration we use as an equivalent samples ...
a)Buffers
b)Neutral samples
c)Acids
What kind of manometer is used with "u" typed pipe ?
a)Piezometer
b)Barometer
c)Absolute gauge
Which devices measures the pressure from 6*10^6 to 7*10^8 Pa?
a)Manometer
b)Bourdon tube
c)Absolute
What is the solution that have constant pH values and the ability to resist changes in pH?
a)Acids
b)Potassium
c)Buffers
If the H+ concentration is higher than OH- the material is...
a)Base
b)Acidic
c) concentration
The pH measuring electrode is a ion sensitive glass bulb.
Sulfur
Oxygen
Hydrogen
The set of operations of any production process is divided to:
a) 4
b) 3
c)2
The set of management operations forms the..
a)Management process
b)Mechanization process
c)Operational process
Which device is mounted on a specific object?
Recording
Portable
Stationary
All electrical and pneumatic signals are..
Standartized
Operated
Digitized
Which device is can be carried out with yourself?
Stationary
Showing
Portable
according to the type of scale, all control and measuring device is divided to:
Both of them
Analog
Digital
P=Pa+pgh is formula for..
The absolute pressure
Pressure in barometer
The pressure difference between the system and the atmosphere
What is the most commonly used pressure gauge?
Bourdon tube
Gauge
Diaphragm
For what used buffer solution?
Measuring
Weighing
Calibration
How many indicators of alcality/acidity consist in pH scale?
a) 14
b)5
c)7
What is the name of pressure gauge where-two corrugated diaphragms are welded together at the periphery?
Manometer pressure gauge
Capsule pressure gauge
Absolute pressure gauge
The formal definition of pH ...
Positive logarithm of the hydrogen ion
Negative logarithm of the hydrogen ion
Logarithm of the hydrogen ion
Choose one incorrect characteristic of group of control and measuring devices
The type of measured value
Shape of scale
Metrological purpose
What is the range of pressure measure of Bourdon tube pressure gauge?
1-1000 psia
3500-10000 bar
0,6-7000 bar
... - the value of the measured parameter is indicated by reading device.
Comparating devices
Recording device
Indicating device
Choose device for phusico-chemical quantities:
Flow meter
Ammeters
Densimeter
Which device is used to measure pressure on a fluid by balancing one column of fluid?
Absolute pressure gauge
Bellows pressure gauge
Manometer pressure gauge
What is the sequence of control system?
Input -> x-> process -> controller-> feedback -> output
Input -> x-> controller -> process -> feedback -> output
Input -> x-> controller -> process -> output
At last two levels, automation is carried out only by
Man-machine systems
Controlling devices
Automated devices
Why do electric, pneumatic and hydraulic devices are used?
To generate signal
To show the signal
To remote the signals
_often contains the two electrodes - internal and reference electrodes.
Glass probe
pH scale
pH value
Select one characteristic of fixed automation?
Lower production rates
High production rates
Meduim production rates
When the pressure.... ,the diaphragm diforms in to the vacuum chamber in the differential gauge?
Increases
Decreases
Set the balance
The purpose of ..... is to purpose fully transform the studied quantities into a form.
Control devices
Control and indicating devices
Control and measuring devices
If pH > 7, it means .
High [C) of OH-
High [C] of H+
Balance between them
Local and automation of a set of technological processes are mainly operated into ....
Manual with automatic control
Only manual one
Automatic with some manual
Which devices use the energy of controlled environment to generate signals?
Pneumatic and Hydraulic
Recording and Electric
Hydraulic and Showing
