Block 2 - Network Devices - Automation & Instrumentation Control Systems Self Assessment

Question 1

Which protocol is most susceptible to cyberattacks due to lack of encryption?

Answer 1

MODBUS

Question 2

Which is a limitation of BACnet MSTP?

Answer 2

Slow data transfer rate

Question 3

BACnet MSTP employs which mechanism to ensure efficient bandwidth usage?

Answer 3

Token-passing

Question 4

What is the maximum data transfer rate for serial MODBUS?

Answer 4

115.2 kbps

Question 5

RS422/485 provides superior noise immunity due to:

Answer 5

Differential signaling

Question 6

RS232’s maximum data transfer rate is:

Answer 6

115.2 kbps

Question 7

MODBUS is primarily used in:

Answer 7

Industrial automation

Question 8

Which feature makes MODBUS widely adopted?

Answer 8

Open standard design

Question 9

In building automation, which protocol allows for the greatest scalability with multiple vendors?

Answer 9

LON

Question 10

What is the maximum cable length supported by RS232?

Answer 10

15 meters

Question 11

What is a limitation of the MODBUS protocol?

Answer 11

Vulnerability to cyberattacks

Question 12

RS485 supports:

Answer 12

Multi-device networking

Question 13

Which protocol supports bi-directional communication using the same wires?

Answer 13

HART

Question 14

A key feature of the HART protocol is:

Answer 14

Analog and digital communication

Question 15

Which device type commonly uses RS232?

Answer 15

Printers

Question 16

BACnet protocols are commonly used in:

Answer 16

Building automation

Question 17

Which protocol is most suitable for extremely long-distance communication?

Answer 17

Spread Spectrum

Question 18

RS485 supports cable lengths of up to:

Answer 18

3,000 meters

Question 19

What is a key feature of RS422/485 compared to RS232?

Answer 19

Longer cable distances

Question 20

Which is a limitation of RS422/485 protocols?

Answer 20

Complexity of implementation

Question 21

BACnet IP requires additional hardware like:

Answer 21

Routers and switches

Question 22

BACnet IP’s primary advantage over BACnet MSTP is:

Answer 22

Use of Ethernet for communication

Question 23

Spread Spectrum ensures signal security by:

Answer 23

Frequency-hopping

Question 24

MODBUS over Ethernet supports a maximum data rate of:

Answer 24

100 Mbps

Question 25

DeviceNet supports a maximum data rate of:

Answer 25

500 kbps

Question 26

What feature is shared between RS422, RS485, and BACnet MSTP?

Answer 26

Differential signaling

Question 27

Which feature is a limitation of RS232?

Answer 27

Slow data transfer rate

Question 28

RS232 is best suited for:

Answer 28

Simple point-to-point communication

Question 29

Which limitation is common to Ethernet TCP/IP?

Answer 29

Distance limitations for Ethernet cables

Question 30

Which feature is specific to the LON protocol?

Answer 30

Open protocol promoting interoperability

Question 31

Why is proper installation of automation and instrumentation control systems important?

Answer 31

To ensure optimal performance, safety, and reliability

Question 32

What is the importance of grounding in wiring practices?

Answer 32

To prevent electrical noise and surges

Question 33

What document helps visualize wiring connections in a control system?

Answer 33

Wiring diagrams

Question 34

Which factor is critical when selecting mounting locations for controls?

Answer 34

Distance from the equipment being controlled

Question 35

What aspect of automation systems is crucial for power generation plants?

Answer 35

Optimizing efficiency and reliability

Question 36

What should be updated during the installation process?

Answer 36

Wiring diagrams

Question 37

What role does the NFCC play in control system installation?

Answer 37

Specifies fire safety requirements

Question 38

What should be considered when selecting cables for control systems?

Answer 38

Insulation, shielding, and voltage rating

Question 39

What is required for unapproved gas-fired appliances in Canada?

Answer 39

Product approval and design registration

Question 40

Which test ensures communication between all devices in a control loop?

Answer 40

Loop testing

Question 41

What is the primary resource for understanding system installation procedures?

Answer 41

Manufacturer's documentation

Question 42

What is the primary purpose of antistatic materials during installation?

Answer 42

To minimize the risk of static discharge

Question 43

Which industry uses automation systems to optimize drilling and refining processes?

Answer 43

Oil and gas

Question 44

What is the final step in completing an installation process?

Answer 44

System testing

Question 45

What is the main advantage of system scalability?

Answer 45

Allows future expansion without compatibility issues

Question 46

Why is labeling wires and components important?

Answer 46

Simplifies troubleshooting and maintenance

Question 47

What Canadian code sets safety requirements for electrical installations?

Answer 47

Canadian Electrical Code (CEC)

Question 48

Which factor is NOT part of system compatibility considerations?

Answer 48

System layout aesthetics

Question 49

What environmental condition is NOT a primary concern for installation?

Answer 49

Altitude

Question 50

What is the primary purpose of communication protocols in control systems?

Answer 50

To enable data exchange between components