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Gas A Level 2 > Block 2 - Network Devices - Automation & Instrumentation Control Systems Self Assessment > Flashcards

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

1
Q

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

A

MODBUS

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2
Q

Which is a limitation of BACnet MSTP?

A

Slow data transfer rate

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3
Q

BACnet MSTP employs which mechanism to ensure efficient bandwidth usage?

A

Token-passing

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4
Q

What is the maximum data transfer rate for serial MODBUS?

A

115.2 kbps

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5
Q

RS422/485 provides superior noise immunity due to:

A

Differential signaling

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6
Q

RS232’s maximum data transfer rate is:

A

115.2 kbps

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7
Q

MODBUS is primarily used in:

A

Industrial automation

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8
Q

Which feature makes MODBUS widely adopted?

A

Open standard design

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9
Q

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

A

LON

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10
Q

What is the maximum cable length supported by RS232?

A

15 meters

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11
Q

What is a limitation of the MODBUS protocol?

A

Vulnerability to cyberattacks

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12
Q

RS485 supports:

A

Multi-device networking

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13
Q

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

A

HART

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14
Q

A key feature of the HART protocol is:

A

Analog and digital communication

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15
Q

Which device type commonly uses RS232?

A

Printers

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16
Q

BACnet protocols are commonly used in:

A

Building automation

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17
Q

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

A

Spread Spectrum

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18
Q

RS485 supports cable lengths of up to:

A

3,000 meters

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19
Q

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

A

Longer cable distances

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20
Q

Which is a limitation of RS422/485 protocols?

A

Complexity of implementation

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21
Q

BACnet IP requires additional hardware like:

A

Routers and switches

22
Q

BACnet IP’s primary advantage over BACnet MSTP is:

A

Use of Ethernet for communication

23
Q

Spread Spectrum ensures signal security by:

A

Frequency-hopping

24
Q

MODBUS over Ethernet supports a maximum data rate of:

A

100 Mbps

25
Q

DeviceNet supports a maximum data rate of:

A

500 kbps

26
Q

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

A

Differential signaling

27
Q

Which feature is a limitation of RS232?

A

Slow data transfer rate

28
Q

RS232 is best suited for:

A

Simple point-to-point communication

29
Q

Which limitation is common to Ethernet TCP/IP?

A

Distance limitations for Ethernet cables

30
Q

Which feature is specific to the LON protocol?

A

Open protocol promoting interoperability

31
Q

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

A

To ensure optimal performance, safety, and reliability

32
Q

What is the importance of grounding in wiring practices?

A

To prevent electrical noise and surges

33
Q

What document helps visualize wiring connections in a control system?

A

Wiring diagrams

34
Q

Which factor is critical when selecting mounting locations for controls?

A

Distance from the equipment being controlled

35
Q

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

A

Optimizing efficiency and reliability

36
Q

What should be updated during the installation process?

A

Wiring diagrams

37
Q

What role does the NFCC play in control system installation?

A

Specifies fire safety requirements

38
Q

What should be considered when selecting cables for control systems?

A

Insulation, shielding, and voltage rating

39
Q

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

A

Product approval and design registration

40
Q

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

A

Loop testing

41
Q

What is the primary resource for understanding system installation procedures?

A

Manufacturer’s documentation

42
Q

What is the primary purpose of antistatic materials during installation?

A

To minimize the risk of static discharge

43
Q

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

A

Oil and gas

44
Q

What is the final step in completing an installation process?

A

System testing

45
Q

What is the main advantage of system scalability?

A

Allows future expansion without compatibility issues

46
Q

Why is labeling wires and components important?

A

Simplifies troubleshooting and maintenance

47
Q

What Canadian code sets safety requirements for electrical installations?

A

Canadian Electrical Code (CEC)

48
Q

Which factor is NOT part of system compatibility considerations?

A

System layout aesthetics

49
Q

What environmental condition is NOT a primary concern for installation?

A

Altitude

50
Q

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

A

To enable data exchange between components

Gas A Level 2 (22 decks)

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