Midterm

Question 1

An example of a primary sensing element is:

Answer 1

an RTD

Question 2

A device that converts process span value to 4-20 mA is called a:

Answer 2

a transmitter

Question 3

The LRV and URV of a process that ranges from 300C to 500C, and represented by a standardized electronic transmitter would be:

Answer 3

4mA= 300C 20mA = 500C

Question 4

The LRV and URV of a process that ranges from 300C to 500C - The zero and span would be:

Answer 4

zero = 300C span = 200C

Question 5

What device sends out a correcting signals?

Answer 5

a controller

Question 6

A process variable is defined as:

Answer 6

the variable that is a part of the process and contributes to its overall characteristic.

Question 7

The variable that is required to be controlled is called

Answer 7

the setpoint

Question 8

If we return the control function of a controller in a loop, we may say the process is under:

Answer 8

automatic control

Question 9

What is the process variable in this case?

Answer 9

chlorine concentration

Question 10

Why is a motor driven valve used?

Answer 10

It allows a slow accurate movement of the valve stem

Question 11

The manipulated variable is:

Answer 11

flow rate of chlorine supply

Question 12

The manipulated variable is measured

Answer 12

False

Question 13

In which of the following regulations or codes can you find rules for Personal Protective Equipment?

Answer 13

OH&S

Question 14

The Association of Sciences and Engineering Technology Professionals of Alberta

Answer 14

Works with other Association Professionals to approve membership in it’s organization.

Question 15

The purpose of instrumentation standards, codes, regulations and rules is to:

Answer 15

provide a means of conducting a safe, efficient and common work environment in instrumentation

Question 16

An Act is a ___________ passed by parliament to provide for a safe working environment.

Answer 16

law

Question 17

What organization regulates the use of a pressure safety valve ( PSV ) in Alberta?

Answer 17

ABSA

Question 18

Where can the regulations or codes be found which deal with rules for Area Classification of Hazardous locations?

Answer 18

CEC

Question 19

What is AGA 3 used for?

Answer 19

To standardize the measurment of gas flow across an orifice plate.

Question 20

Where would you go to find information on standards for control signals?

Answer 20

ISA

Question 21

Where would you go if you wanted to know about safe working practices on the job site?

Answer 21

Alberta Occupational Health and Safety

Question 22

A question came up about what color the ground wire should be in a service panel. We would consult:

Answer 22

Canadian Electric Code

Question 23

What section in the CEC covers hazardous locations

Answer 23

18

Question 24

What does the following acronym symbolize: I/S

Answer 24

instrument air supply

Question 25

What is the main difference between Smartplant P&ID and Visio?

Answer 25

Smartplant P&ID is a server, rule based progam; while Visio is a stand alone program.

Question 26

Which of the following drawings show the greatest amount of detail?

Answer 26

Loop drawings

Question 27

The type of bubble or the lines within the bubble, representing a field device, indicates its :

Answer 27

location

Question 28

All instruments, even indicators, used in a loop drawing, have:

Answer 28

an input and output.

Question 29

What two elements are used to sense a possible surge condtion?

Answer 29

FE-42 PDT-42

Question 30

What does this symbol represent?

Answer 30

A magnetic flowmeter

Question 31

What does this symbol represent?

Answer 31

A failed locked position control valve

Question 32

What does the "P" mean in this drawing?

Answer 32

The valve has a positioner attached to it.

Question 33

What does this symbol represent?

Answer 33

A Turbine Meter

Question 34

What type of drawing is shown below?

Answer 34

Functional

Question 35

What does this symbol represent?

Answer 35

Control valve with handjack

Question 36

What does this symbol represent?

Answer 36

Pressure Regulator

Question 37

What does the following symbol represent?

Answer 37

Indicator

Question 38

What does FSHH mean?

Answer 38

Flow Switch High High means an alarm is sent and an automatic shutdown is initiated

Question 39

What type of drawing illustrates the algorithms used in a control systems, rather than the physical components

Answer 39

Functional diagram

Question 40

What can be said about this device?

Answer 40

It has a range of 20 - 4 mA output

Question 41

What does the following symbol represent?

Answer 41

caplillary connection

Question 42

Which symbol indicates a discrete instrument mounted on the front of a panel in the main control room?

Answer 42

A

Question 43

Describe this valve:

Answer 43

Fail open

Question 44

Name the instrument that can show and record process variables over time.

Answer 44

Recorder

Question 45

What symbol is used in a drawing to represent at pneumatic control signal?

Answer 45

a thin solid line periodically spaced double hatch marks

Question 46

Variable speed drive motors are examples of what part of the process control loop?

Answer 46

final control element

Question 47

Which number represents the flow transmitter?

Answer 47

1

Question 48

Which number represents the function block wherein the measured quantity is compared to the set point?

Answer 48

2

Question 49

Which number represents a standard signal?

Answer 49

3

Question 50

What number represents the effect that the final control element has on the process?

Answer 50

5

Question 51

Why must the water level not get too low in a steam drum?

Answer 51

The water cools the drum and keeps the drum from getting damaged from the heat.

Question 52

What is a Standard?

Answer 52

An accepted norm or requirement.

Question 53

What is a Code?

Answer 53

A collection of rules and practical guidelines for the completion of a task.

Question 54

What is a Regulation?

Answer 54

A governmental order having the force of law that contains more information than that Act from which it came

Question 55

Which of the following rules have legal force, or could be enforced in a court of law?

Answer 55

A pressure relief device for a boiler must be set to open before the pressure in the pressure equipment exceeds the maximum allowable working pressure of the pressure equipment.

Question 56

The Canadian Electrical Code is important to Instrumentation Technologists and Technicians because

Answer 56

It defines hazardous locations and the kind of instruments we can put in them.

Question 57

What type of documentation is used to take a complex task and reduce it to smaller tasks?

Answer 57

work breakdown structure

Question 58

A _________________ is used to graphically indicate and schedule tasks and identify a crtical path for a project.

Answer 58

Gantt chart

Question 59

Which piece of documentation would typically includea BOM?

Answer 59

Installation drawing

Question 60

How was the Fieldbus signal line represented:

Answer 60

A broken solid line with diamonds between the breaks.

Question 61

the correct description for the following drawing:

Answer 61

Loop 301 is a pneumatic control loop, sending out a 3-15 psig signal to a positioner controlled ball valve.

Question 62

Where can you typically find a signature block on a drawing?

Answer 62

Near the lower right hand side of a drawing

Question 63

Why do we need a BOM?

Answer 63

in order to pick the components that would be required to build a project from an installation diagram.

Question 64

What does a square root symbol inside a box represent?

Answer 64

The instrument is a square root extractor

Question 65

What is an orifice plate used for?

Answer 65

To create a differential pressure through a flow run

Question 66

What three resource windows are usually shown in Smartplant P&ID?

Answer 66

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