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Instrument Mechanic Practice Test: DCS & SCADA
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Avg score: 65% • Most missed: “Before planning an alarm system within the SCADA one should consider”
DCS and SCADA are both systems that control plant operations and the devices they can deploy. The main difference between the two is what they focus on:   DCS: Focuses on process control, such as closed-loop control, advanced regulatory control, and sequence control. DCS systems are designed for more complex process control functions, such as refineries. SCADA: Focuses on data collection, primarily for monitoring and data collection. SCADA systems are primarily intended for operations that span broad geographical areas, such as pipelines and utilities. SCADA systems are event-driven and... Show more
Instrument Mechanic Practice Test: DCS & SCADA
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20 Questions

1. SCADA systems encompass the transfer of data between a central host computer & a no of ………………& PLC& the central host & the operator terminal
2. A SCADA system performs data acquisition, networked data communication, _______________ and control.
3. Sensors & control relays can’t generate/interpret protocol communication,…………..is needed to provide an interface between the sensors & the SCADA network.
4. How many levels are present in a complex SCADA system?
5. In ……………………the connected processors communicated over a common channel using time sharing, thus allowing attached computers to transmit information in short duration , high speed bursts.
6. A SCADA system will include
7. The control in SCADA is _____________
8. Sensors & control relays can’t generate/interpret protocol communication,…………..is needed to provide an interface between the sensors & the SCADA network.
9. A Dynamic data exchange …………………is a program that can obtain from a DDE server.
10. How many levels are present in a complex SCADA system?
11. A central host computer server or servers called…………..
12. When did the SCADA start?
13. DCS is a __________________
14. A SCADA system performs data acquisition, networked data communication, _______________ and control.
15. Before planning an alarm system within the SCADA one should consider
16. Which of the following is not the component of a SCADA system?
17. ………………consists of number of microcomputer / minicomputers are connected in a tree structure
18. combine communication paths to & from many RTUs into a single bit stream, usually using time division multiplexing or other such bit stream manipulation technique
19. A ………………..consists of high speed, unidirectional digital communication channel which is arranged as a closed loop or ring microcomputers are attached to the ring by ring interface units.
20. A Dynamic data exchange …………………is a program that can obtain from a DDE server.

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