SCADA Question & Answers June 21, 2021 By WatElectronics This article lists 50+ SCADA MCQs for students. All the SCADA Questions & Answers given below include a solution and link wherever possible to the relevant topic. The acronym for SCADA is Supervisory Control and Data Acquisition. The SCADA is a collection of both hardware and software components. It is software that is used to control the hardware’s which could be PLCs, PIDs, servers, drives, etc. It acquires data from RTU devices into the computer system. The inputs and outputs in SCADA are represented in images. The architecture of supervisory control and data acquisition consists of a control center, communication network, and field instruments. The applications of the SCADA include the food processing industry, chemical industry, water treatment plant, etc. It can be interfaced to programmable logic controller to read and present the information in graphical, animated form or make a log. 1). The SCADA systems used to _______ Monitor Control Both a and b None of the above None Hint 2). The standard form of RTU is Reverse Terminal Unit Remote Terminal Unit Reverse Unit None of the above None Hint Read more about SCADA 3). The standard form of MTU is Master Terminal Unit Main Terminal Unit Main Unit None of the above None Hint 4). The standard form of HMI is Human Master Interface Human Machine Interface Human Main Interface None of the above None Hint 5). What are the types of SCADA systems? Monolithic, Distributed Monolithic, Networked Monolithic, Distributed, Networked None of the above None Hint 6). The standard form of MMI is Main Machine Interface Master Machine Interface Man Machine Interface None of the above None Hint 7). Where SCADA can be used? Manufacturing Mass transit Traffic signals All of the above None Hint 8). How many levels does complex SCADA system have? One Two Three Four None Hint 9). The SCADA system performs ________ Data presentation Data acquisition Networked data communication All of the above None Hint 10). The functions of the SCADA systems performed by using ________ Sensors, communication network SCADA master units Remote telemetry units All of the above None Hint 11). __________ is not a component of SCADA system Sparger controller Output system Database server None of the above None Hint 12). The RAID level 50 is a combination of __________ RAID 1 and RAID 0 RAID 5 and RAID 0 RAID 3 and RAID 0 None of the above None Hint 13). What is the standard form of RAID? Reduced Array of Independent Disks Reverse Array of Independent Disks Redundant Array of Independent Disks Random Array of Independent Disks None Hint 14). The Redundant Array of Independent Disk is used for _________ Improvement of performance Improvement of reliability Both a and b None of the above None Hint 15). The redundancy in the RAID can be achieved by ____________ Mirroring or shadowing Parity scheme Both a and b None of the above None Hint 16). The improvement of performance in RAID is achieved by using ________ Mirroring or shadowing Parity scheme Parallelism Both a and b None Hint 17). What is the standard form of CRC? Cyclic Redundancy Check Code Redundancy Check Cyclic Redundancy Code None of the above None Hint 18). Who developed DNP3 protocol? Jonas Wenstrom William Ritchie Michael Faraday Harris None Hint 19). Which multiple access suitable for analog radios? Code Division Multiple Access Time Division Multiple Access Frequency Division Multiple Access None of the above None Hint 20). Which multiple access suitable for digital radios? Code Division Multiple Access Time Division Multiple Access Frequency Division Multiple Access Both a and b None Hint SCADA MCQs with Hints None 21). The spread spectrum operates in ___________ 902-928MHz 900-920KHz 910-920MHz 900-940MHz None Hint 22). The FCC channel bandwidth is around ______ 12.5MHz 12.5KHz 13.5MHz 14.5MHz None Hint 23). What is the standard form of DCS? Distributed Control System Digital Control System Distributed Code System Distributed Communication System None Hint 24). The first generation SCADA systems were developed or designed in _______ 1960 1970 1980 None of the above None Hint 25). The second generation SCADA systems were developed or designed in _______ 1960 1970 1980 None of the above None Hint 26). The third generation SCADA systems were developed or designed in _______ 1960 1970 1980 None of the above None Hint 27). How many type of control systems are there for SCADA systems? One Two Three None of the above None Hint 28). How many network configurations does SCADA system may use? One Two Three None of the above None Hint 29). In how many ways does SCADA system can get access to the cloud? One Two Three None of the above None Hint 30). What is the type of control in SCADA? Online control Digital control Analog control Supervisory control None Hint 31). The supervisory control and data acquisition system ________ Stores data Monitors data Controls data All of the above None Hint 32). What are the components of traditional SCADA system? Remote Telemetry Unit Communication system Central Station All of the above None Hint 33). What are the components of modern SCADA system? Human Machine Interface SCADA servers SCADA clients All of the above None Hint 34). How many levels does complex SCADA system have? One Two Three Four None Hint 35). What are the elements of SCADA system? Graphical displays Tags Alarms Trends None Hint 36). The heart of the SCADA system is ________ CPU PLC Relays I/O task None Hint 37). The task of the alarm is __________ Client Server Both a and b None of the above None Hint 38). In which mode DNP3 can be use Polled only Polled reported by exception Both a and b None of the above None Hint 39). The distributed control system is ___________ Process oriented Object oriented Data acquisition oriented None of the above None Hint 40). The supervisory control and data acquisition system is ____________ Process oriented Object oriented Data acquisition oriented None of the above None Hint SCADA Interview Questions and Answers 41). What is the programming principle in clear SCADA system? Process oriented programming Object oriented programming Data acquisition oriented programming Structure oriented programming None Hint 42). The parallelism in RAID is achieved mainly by using the ______ method Mirroring or shadowing Parity scheme Data striping Parallelism None Hint 43). The data in the RAID is divided into _______ Cells Tables Stripes Columns None Hint 44). _________ is an example for supervisory control and data acquisition system Emerson Delta V Yokogawa Centum Power Studio Deluxe Honeywell Plantscape None Hint 45). _________ is an example for distributed control system Emerson Delta V Yokogawa Centum Honeywell Plantscape All of the above None Hint 46). Which level of RAID used for centralized network database? RAID 3 RAID 4 RAID 5 All of the above None Hint 47). How many disks does RAID 2 consists of _____ One Two Three Four None Hint 48). _________ is also known as striping RAID 0 RAID 4 RAID 5 All of the above None Hint 49). The RAID 4 consists of _____________ disks One Two Three Five None Hint 50). _________ is also known as mirroring RAID 0 RAID 1 RAID 5 All of the above None Hint 51). What are the features of supervisory control and data acquisition system? Tag/data logging Alarm Report All of the above None Hint 52). _______ is an example for supervisory control and data acquisition system Electric energy, industrial processes Oil and gas, nuclear processes, transportation Water and sewage treatment All of the above None Hint 53). What are the benefits of SCADA system? Saves money, time, energy Increases profitability and productivity Expansion capability, cost effective All of the above None Hint 54). The master terminal unit in SCADA system can be _______ Web server Real time decision maker Analyzes data, data logging All of the above None Hint 55). ________ is one type of human machine interface Monochrome or coloured Screens with keypad or touch screens Both a and b None of the above None Hint 56). The human machine interface information like _________ Temperature, pressure Running time, material counts The process steps All of the above None Hint 57). The human machine interface can be used to monitor and control various locations such as ________ Engine assembly, vehicle assembly Machine shops Paint shops All of the above None Hint 58). What are the communication protocols used for the interfacing between human machine interface and programmable logic controller? RS232, modbus Profibus Ethernet All of the above None Hint 59). The remote telemetry unit contains _________ Power supply Solar array, transceivers Antenna All of the above None Hint 60). The IED supports _____ Quiescent operation Unsolicited report by exception operation Polled report by exception operation Polled static operation All of the above None Hint 61). In how many ways does RS485 can we use? Two ways Three ways Four ways Five ways None Hint SCADA MCQs for Quiz 62). What is the standard form of PCN? Process Control Network Private Control Network Public Control Network None of the above None Hint 63). The functions of supervisory control and data acquisition system categorized into _____ Two Three Four None of the above None Hint 64). The supervisory control and data acquisition system performs _______ in substation Automation system Bus load balancing Bus fault protection, bus voltage control All of the above None Hint 65). The end user load control is one of the SCADA function that implements ________ functions Automatic meter reading Automatic billing generation Remote load control All of the above None Hint 66). What is the standard form of SSD? Solid State Disk State Solid Disk Simple Solid State Disk None of the above None Hint 67). The clear supervisory control and data acquisition system performs _____ Point historic records Event journal records Configuration change and alarm summary records All of the above None Hint 68). The protocols in supervisory control and data acquisition system are _________ Modbus RTU, Profibus Conitel RP570 All of the above None Hint 69). ___________ is an advantage of DNP3 protocol Open protocol Provides long term benefits to users Both a and b None of the above None Hint 70). The distributed network protocol supports ________ architecture TCP/IP Two layer EPA architecture Three layer EPA architecture None of the above None Hint Time's up
