Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January Automation-And-Robotics 7th Sem 71806 Sensors And Signal Processing Previous Question Paper
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (Automation & Robotics) (2012 & Onwards)
(Sem.?7)
SENSORS AND SIGNAL PROCESSING
Subject Code : BTAR-701
M.Code : 71806
Time : 3 Hrs. Max. Marks : 60
INST RUCT ION TO CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt ANY FOUR questio ns.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt ANY TWO questions .
SECTION-A
Answer briefly :
Q1. What is film sensor?
Q2. Write the equation of direct form of discrete time system.
Q3. What is data logger? Where it is used?
Q4. What is the need of amplification and filtering in signal conditioning?
Q5. What is impulse invariance?
Q6. What is the difference between frequency domain and time domain?
Q7. What is the difference between fixed point and floating point?
Q8. What do you understand bilinear transformation?
Q9. What is region of convergence in Z transform?
Q10. Where the nano sensors are used?
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SECTION-B
Q11. How smart sensors, MEMS and nano sensors differ from each other and where they are
used? List applications.
Q12. What are the properties of Z transform? List and explain them.
Q13. What is the function of sample and hold circuit in data acquisition systems? Explain the
difference between TDM and FDM basedb DAS.
Q14. What is finite precision effect? Elaborate.
Q15. What is a process control system? What methods are used to control a process? Why PID
controller is prefered over ON OFF controller?
SECTION-C
Q16. Explain with neat diagram single channel and multichannel data acquisition system. How
modern digital data acquisition systems differ from analog data acquisition system? List
some industrial applications of data acquisition system.
Q17. What are digital filters? Discuss design methods of FIR and IIR filter design with suitable
diagrams.
Q18. What is the role of smart sensors in medical diagnostics and environmental monitoring?
Discuss with suitable example.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 26 June 2021