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Worksheets

pm 3.1

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Name three types of automation in production systems

a)

a)Active; flexible; Programmable

b)

b)Programmable; flexible; fixed

c)

c)Manual; flexible; Programmable

2.

Which buffers we used to calibrate the pH meter in our lab?

a)

a) 4; 7; 9

b)

b)5; 7;10

c)

c) 2;5;10

3.

What is weighing device?

a)

a)scale

b)

b)hydrometer

c)

c)anemometer

4.

What device used for measuring physico-chemical quantities?

a)

a)pH meter

b)

b)beam balance

c)

c)chromatography

5.

What is used for measuring pressure?

a)

a)double pan

b)

b)barometer

c)

c) colorimeter

6.

How acids can be defined ?

a)

a)as a proton donor

b)

b)as a proton acceptor

c)

c)both of them

7.

Which of the following is the formula for pH calculation?

a)

a)log10[H+]

b)

b) -log2[H+]

c)

c) -log10[H+]

8.

How can instrumentation be divided according to the nature of the functions performed?

a)

a)showing and recording

b)

b)Stationary and portable

c)

c) Electric and pneumatic

9.

How can instrumentation be divided according to the method of application?

a)

b)showing and recording

b)

a)stationary and portable

c)

c)Electric and hydraulic

10.

Sometimes how showing and recording are combined?

a)

a) with alarm, regulation and blocking function

b)

b)with sensors

c)

c)with counting

11.

When portable devices are used?

a)

a)when it's necessary to carry out automatic recording

b)

b)when it's necessary to carry values

c)

c)when it's necessary to carry each specific measurement

12.

What is the diaphragm pressure gauge also known as ?

a)

a)Membrane pressure gauge

b)

b)Piezometer

c)

c)Bourdon tube

13.

Management operation must organize and direct ...

a)

a)Work operation

b)

b)Control operation

c)

c)Manual and automatic operation

14.

Local and automation of a set of technological processes are mainly operated into..

a)

a)Manual with automatic control

b)

b)Only manual one

c)

c) Automatic with some manual

15.

Which automation is used for high production rates?

a)

a)Fixed

b)

b)Flexible

c)

c)Programmable

16.

Which devices carry outs automatic recording of the value?

a)

a)Recording

b)

b)Showing

c)

c)Electric

17.

Thermometer is used with

a)

a)Contact method

b)

b)Non-contact

c)

c)None of them

18.

For calibration we use as an equivalent samples ...

a)

a)Buffers

b)

b)Neutral samples

c)

c)Acids

19.

What kind of manometer is used with "u" typed pipe ?

a)

a)Piezometer

b)

b)Barometer

c)

c)Absolute gauge

20.

Which devices measures the pressure from 6*10^6 to 7*10^8 Pa?

a)

a)Manometer

b)

b)Bourdon tube

c)

c)Absolute

21.

What is the solution that have constant pH values and the ability to resist changes in pH?

a)

a)Acids

b)

b)Potassium

c)

c)Buffers

22.

If the H+ concentration is higher than OH- the material is...

a)

a)Base

b)

b)Acidic

c)

c) concentration

23.

The pH measuring electrode is a ion sensitive glass bulb.

a)

Sulfur

b)

Oxygen

c)

Hydrogen

24.

The set of operations of any production process is divided to:

a)

a) 4

b)

b) 3

c)

c)2

25.

The set of management operations forms the..

a)

a)Management process

b)

b)Mechanization process

c)

c)Operational process

26.

Which device is mounted on a specific object?

a)

Recording

b)

Portable

c)

Stationary

27.

All electrical and pneumatic signals are..

a)

Standartized

b)

Operated

c)

Digitized

28.

Which device is can be carried out with yourself?

a)

Stationary

b)

Showing

c)

Portable

29.

according to the type of scale, all control and measuring device is divided to:

a)

Both of them

b)

Analog

c)

Digital

30.

P=Pa+pgh is formula for..

a)

The absolute pressure

b)

Pressure in barometer

c)

The pressure difference between the system and the atmosphere

31.

What is the most commonly used pressure gauge?

a)

Bourdon tube

b)

Gauge

c)

Diaphragm

32.

For what used buffer solution?

a)

Measuring

b)

Weighing

c)

Calibration

33.

How many indicators of alcality/acidity consist in pH scale?

a)

a) 14

b)

b)5

c)

c)7

34.

What is the name of pressure gauge where-two corrugated diaphragms are welded together at the periphery?

a)

Manometer pressure gauge

b)

Capsule pressure gauge

c)

Absolute pressure gauge

35.

The formal definition of pH ...

a)

Positive logarithm of the hydrogen ion

b)

Negative logarithm of the hydrogen ion

c)

Logarithm of the hydrogen ion

36.

Choose one incorrect characteristic of group of control and measuring devices

a)

The type of measured value

b)

Shape of scale

c)

Metrological purpose

37.

What is the range of pressure measure of Bourdon tube pressure gauge?

a)

1-1000 psia

b)

3500-10000 bar

c)

0,6-7000 bar

38.

... - the value of the measured parameter is indicated by reading device.

a)

Comparating devices

b)

Recording device

c)

Indicating device

39.

Choose device for phusico-chemical quantities:

a)

Flow meter

b)

Ammeters

c)

Densimeter

40.

Which device is used to measure pressure on a fluid by balancing one column of fluid?

a)

Absolute pressure gauge

b)

Bellows pressure gauge

c)

Manometer pressure gauge

41.

What is the sequence of control system?

a)

Input -> x-> process -> controller-> feedback -> output

b)

Input -> x-> controller -> process -> feedback -> output

c)

Input -> x-> controller -> process -> output

42.

At last two levels, automation is carried out only by

a)

Man-machine systems

b)

Controlling devices

c)

Automated devices

43.

Why do electric, pneumatic and hydraulic devices are used?

a)

To generate signal

b)

To show the signal

c)

To remote the signals

44.

_often contains the two electrodes - internal and reference electrodes.

a)

Glass probe

b)

pH scale

c)

pH value

45.

Select one characteristic of fixed automation?

a)

Lower production rates

b)

High production rates

c)

Meduim production rates

46.

When the pressure.... ,the diaphragm diforms in to the vacuum chamber in the differential gauge?

a)

Increases

b)

Decreases

c)

Set the balance

47.

The purpose of ..... is to purpose fully transform the studied quantities into a form.

a)

Control devices

b)

Control and indicating devices

c)

Control and measuring devices

48.

If pH > 7, it means .

a)

High [C) of OH-

b)

High [C] of H+

c)

Balance between them

49.

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

50.

Which devices use the energy of controlled environment to generate signals?

a)

Pneumatic and Hydraulic

b)

Recording and Electric

c)

Hydraulic and Showing