UNIT 5

Q. No. 1: SCADA is an acronym for:

A. Supervisory control and digital acquisition system
B. Supervisory control and data acquisition system
C. Scientific control and digital acquisition system
D. None of the above
Q. No. 2: RTU in SCADA system, is an acronym for:
A. Remote Terminal Unit
B. Regional Transmission Unit
C. Regional Traction Unit
D. All of the above
Q. No. 3: MTU in SCADA system, is an acronym for:
A. Motion Transmission Unit
B. Motion Tracking Unit
C. Master Terminal Unit
Q. No. 4: HMI in SCADA system is an acronym for:
A. High Magnetic Interference
B. Heavy machine intelligence
C. Human master interface
D. Human machine interface
Q. No. 5: MMI in SCADA system, is an acronym for:
A. Machine manipulated interface
B. Man Machine Interface
C. Master machine intelligence
D. All of the above
Q. No. 6: The communication between remote terminal unit and field devices is:
A. Usually closed loop control with relatively high data rate
B. Usually open loop control with relatively low data rate
C. Usually closed loop control, with relatively low data rate
D. All of the above
Q. No. 7: The communication between remote terminal unit and master terminal unit is:
A. Usually closed loop control with relatively high data rate
B. Usually open loop control with relatively low data rate
C. Usually closed loop control, with relatively low data rate
D. All of the above
Q. No. 8: The master terminal unit:
A. Gathers data from the distant site
B. Presents data to the operator using HMI
C. Transmits control signals to the remote site
D. All of the above
Q. No. 9: The communication between Remote terminal Unit and Master Terminal Unit can
be done by using;
A. Wireless Network
B. Wired Network’
C. Public Telephone Network
D. All of the above
Q. No. 10: The first generation of SCADA system is also called as:
A. Monolithic SCADA system
B. Distributed SCADA system
C. Networked SCADA system
D. All of the above
Q. No. 11: The second generation of SCADA system is also called as:
A. Monolithic SCADA system
B. Distributed SCADA system
C. Networked SCADA system
D. All of the above
Q. No. 12: The third generation of SCADA system is also called as:
A. Monolithic SCADA system
B. Distributed SCADA system
C. Networked SCADA system
D. All of the above
Q. No. 13: In first generation of SCADA system, the communication protocols:
A. Were developed by vendors supplying remote terminal units
B. Supported vendor controlled and proprietary environment
C. Both (A) and (B) above
D. Supported open system architecture
Q. No. 14: WAN is an acronym for:
A. Wide Area Network
B. Widely Accessible Network
C Wise Aviation Network
D. All of the above
Q. No. 15: The highest level of redundancy is available in:
A. Monolithic SCADA system
B. Distributed SCADA system
C. Networked SCADA system
D. None of the above
Q. No. 16: The salient feature of SCADA includes:
A. Alarm Annunciation
B. Trending
C. Data logging
D. All of the above
Q. No. 17: The desirable properties of SCADA are:
A. Adequacy
B. Security
C. Expandability
D. All of the above
Q. No. 18: In terms of Adequacy the SCADA system provided for operation of Electrical Power
System should:
A. Meet the total demand taking into consideration the equipment ratings
B. Meet the total demand taking into consideration the equipment ratings and scheduled
outages of generation, transmission and distribution facilities
C. Meet the total demand taking into consideration the equipment ratings and scheduled as well
as unscheduled outages of generation, transmission and distribution facilities
D. All of the above
Q. No. 19: In terms of security, the SCADA system should be safe from:
A. Any intrusions from internal sources
B. Any intrusions from external sources
C. Any intrusions from internal and/or external sources
D. None of the above
Q. No. 20: The limitation of SCADA is:
A. It’s a costly system
B. Skilled manpower is required for operation and maintenance
C. It’s vulnerable to external or internal intrusions
D. All of the above
Q. No. 21: A variable frequency drive can be interfaced with PLC for operation and control
by:
A. Using analog and digital or discrete signals
B. Using serial communication port
C. Using analog and digital/discrete signals or serial communication port
D. None of the above
Q. No. 22: GUI is an acronym for:
A. Graphical User Interface
B. Guarded User Intrusion
C. Graphically Used Intelligence
D. All of the above
Q. No. 23: IED is an acronym for:
A. Intelligent Electronic Device:
B. Intelligent Electrification Device
C. Interface Electronic Domain
D. Any of the above
Q. No. 24: A typical Intelligent Device comprises of:
A. An analog input
B. An analog output
C. PID control, communication system and program memory
D. All of the above
Q. No. 25: An intelligent electronic device can generally connected to:
A. Fieldbus
B. Profibus
C. Device Net
D. All of the above
Q. No. 26: A typical intelligent electronic device should include:
A. Enough Intelligence
B. Capability for data acquisition
C. Communication with other intelligent devices
D. All of the above
Q. No. 27: The advantage of using intelligent electronic device is:
A. Minimal wiring is required
B. Smaller devices means less physical space is required for data acquisition and control
C. Installation and maintenance is easy
D. All of the above
Q. No. 28: Intelligent electronic devices are generally used in:
A. Substation Automation and Control
B. Chemical plant automation
C. Batch Reactor control
D. None of the above
Q. No. 29: Microprocessor based protection relay used in Substations is a type of:
A. Bay Module of Controller
B. Intelligent Electronic Device
C. Master Terminal Unit
D. None of the above
Q. No. 30: The device used in substation for data acquisition, control and interlocking of a
single feeder is called as:
A. Bay Module of Controller
B. Intelligent Electronic Device
C. Master Terminal Unit
D. None of the above
Q. No. 31: A typical bay controller in a substation comprises of:
A. Digital I/O interface for interfacing with Circuit Breakers
B. Digital I/O interface for interfacing with Isolator motors
C. Digital I/O interface for communication with non-microprocessor-based protection relays
D. All of the above
Q. No. 32: A SCADA system is required for Substation Automation and Control for:
A. Control of all substation electrical equipments from a central point
B. Monitoring of all substation electrical equipments from a central point
C. Energy Management
D. All of the above
Q. No. 33: Operational Constraints include:
A. Limits on the transmission line flows
B. Upper limit on bus voltage magnitude
C. Lower limit on bus voltage magnitude
D. All of the above
Q. No. 34: Power system operating states include:
A. Normal State
B. Emergency State
C. Restorative State
D. All of the above
Q. No. 35: A power system is said to be in a normal state if:
A. All the loads in the system can be supplied power by existing generators without
violating any operating constraints
B. Part of the load in the system can be supplied power by exiting generators by violating any
operating constraints
C. All of the loads in the system can be supplied power by existing generators by violating
some of the operational constraints
D. All of the above
Q. No. 36: Critical contingency in case of a power system includes;
A. Transmission line outage
B. Generator outage
C. Unexpected failure of any electrical equipment
D. All of the above
Q. No. 37: An emergency state exists in an electrical power system exists when;
A. A power system continues to supply power even if some of the operating constraints
are violated
B. A power system discontinues to supply power in case some of the operating constraints are
violated
C. A power system discontinues to supply power even if all the operating constraints are normal
D. None of the above
Q. No. 38: A typical attack which could be mounted against a SCADA system could be:
A. Malicious code such as virus, Trojan horses and worms
B. Denial of service
C. Unauthorised disclosure of critical data
D. All of the above
Q. No. 39: Security to SCADA system can be provided by using:
A. Firewalls
B. Biometrics
C. Cryptography
D. All of the above
Q. No. 40: Security to SCADA system can be provided by using:
A. Intrusion Detection System
B. Malicious code detection and elimination System
C. Role based access control
D. All of the above
Q. No. 41: Redundancy to SCADA system can be provided by;
A. Geographically separated control centres
B. Providing a hot back up standby SCADA system
C. Locating SCADA control centre in remote area in an unmarked inconspicuous building
D. All of the above
Q. No. 42: SCADA system can be used in:
A. Petroleum and Refining plant
B. Water Purification plant
C. Conventional Electrical power generation
D. All of the above
Q. No. 43: Fractionation, hydrodesulfurization, hydrodenitrogenation and alkylation are the all
the terms related to:
A. Petroleum Refining Process
B. Water Purification Process
C. Benzene Production
D. All the above
Q. No. 44: In a typical petroleum refinery plant SCADA system can be used in:
A. Batch reactor control
B. Oil Field Pumps interfaced with Variable Frequency Drive
C. Purification of water
D. None of the above
Q. No. 45: In a conventional electric power generation plant the SCADA system can be used
for:
A. Boiler Data Acquisition and Control
B. Conveyor Control
C. Turbine data acquisition and control
D. All of the above
Q. No. 46: In water purification plant, water flow measurement is done by using:
A. Magnetic Flow Transducer
B. Thermistor
C. Pt – 100 RTD sensor
D. None of the above
Q. No. 47: In Water purification plant the SCADA system can be used for:
A. Water flow measurement and control
B. Water pipeline pressure monitoring
C. Water recycling plant and Water pumping station monitoring and control
D. All of the above
Q. No. 48: In a Benzene production plant the raw materials used are:
A. Toluene and Hydrogen
B. Toluene and Carbon di oxide
C. Nitrogen and Sulphuric Acid
D. All of the above
Q. No. 49: The by-product of benzene manufacturing process is:
A. Ethane
B. Butane
C. Methane
D. None of the above
Q. No. 50: The final product from a petroleum refining plant is:
A. Gasoline
B. Fuel Oil
C. Diesel/Heating Oil
D. All of the above