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Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Fifth Semester B.Tech Degree Regular and Supplementary Examination December 2020

Course Code: AE361
Course Name: VIRTUAL INSTRUMENT DESIGN
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any two full questions, each carries 15 marks. Marks
1 8) What is Nyquist rate and Nyquist interval in sampling? (4)

b) List the advantages of graphical programming over conventional programming (4)
techniques.
c) Explain the working of 3-bit R-2R ladder DAC and 3-bit binary weighted resistor (7)
network DAC.
2 a) Witha block diagram explain the concept of ADC. List different types of ADC. (4)

b) How acontinuous time signal is converted into digital domain? Explain. (8)
c) List the advantages of Virtual instruments. (3)
3 a) What you mean by over sampling, write its significance? (4)

b) With a neat diagram explain the working of flash ADC and Successive (6)
approximation ADC.

© With ೩ block diagram, explain the working of Virtual Instruments. (5)
PART 13
Answer any two full questions, each carries 15 marks.
4 a) Explain the need of Icon and Connector pane. (4)
b) What is the role of DAQ software in a PC-based measurement system? (8)
c) How a measurement data is published in web using LabVIEW? (3)
5 a) Define Local Variable in VI programming. (4)
b) What is a While Loop? Under what circumstances are While Loops used? (6)
c) Describe the uses of Measurement & Automation Explorer. (5)
6 a) How aCluster differ from Array? (3)
b) Explain the significance of Resolution and Calibration. (4)
€) With a neat block diagram explain DMA. (8)

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