By: Prof. Dr. Fazal Rehman | Last updated: March 3, 2022
Digital Control System Solved MCQs Answers
1. What is the acronym DCS is?A. Digital Control SystemB. Differential Concentration SwitchC. Direct Cascade SequencingD. Distributed Control SystemE. DeltaV Console Services
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D
2. Ethernet as a communications network many digital control systems utilize because it is . . .A. robust and inexpensiveB. fully deterministicC. speed is not affected by trafficD. a wireless network standardE. no terminating resistors are necessary
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A
3. In a digital control system, the resolution refers to in the analog-to-digital conversion portion ofA. how determined the designer wasB. the number of active bitsC. the analog signal rangeD. the speed of analog signal samplingE. none of these
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B
5. In digital systems, the parity bits are used for the purpose of…A. power monitoringB. error detectionC. symmetry generationD. diagnostic monitoringE. time-stamping data
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A
6. An integer variable in a digital control system a typical use is…A. Trigonometric math operationsB. Representing power supply voltageC. Exponential math operationsD. Representing single switch statusE. Counting discrete events
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E
7. EIA-485 is a digital communication standard with the following traits…A. Differential voltage signaling, multipointB. Mark-and-space signalingC. Manchester encoding, multidropD. Frequency Shift Key (FSK) signalingE. Single-ended voltage signaling, multidrop
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A
8. Determine that the transfer function of the system is used to…A. The input for a given outputB. The steady state gainC. The output for a given inputD. The type of the systemE. None of these
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C
9. ________ system is the ON-OFF controller.A. DiscontinuousB. DigitalC. LinearD. Non-linearE. All of above
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D
10. How Error Constants of a system are the measure?A. Steady state responseB. Transient state responseC. Relative stabilityD Steady state as well
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A
11. Which of the following is correct on the basis of digital control systems are generally superior to analog control systems, but they are always worse with regard to..?A. User-friendlinessB. FlexibilityC. SpeedD. DiagnosticsE. Noise immunity
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C
12. A triple modular redundant (TMR) digital control system would be typically used for what purpose?A. To minimize routine maintenance requirementsB. To save energy (compared to other control systems)C. To save money (compared to other control systems)D. To increase response speed for fast processesE. To control a potentially dangerous process