B.TECH - Semester 5 electronics measurements and instrumentation Question Paper 2021 (mar)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- 504 - ELECTRONIC MEASUREMENTS AND INSTRUMENTATION (T) (2013 Scheme) Time : 3 Hours Max. Marks : 100 Answer all questions.
- Discuss the classification of transducers.
- Explain the method of force measurement.
- Explain the use of fiberoptic sensor in temperature measurements.
- Which bridge is used for measuring the insulating properties. Define power factor and dissipation factor of the bridge.
- Explain the principle of operation of electrical level indicators.
- List any four differences between dual beam and dual trace oscilloscopes.
- Define harmonic distortion.
- Discuss the steps to be followed to arrive at an intrinsically safe design.
- How is a measurement system protected from electrostatic discharge?
- Explain the loop formation in guarding techniques. ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{2} \boldsymbol{=} \mathbf{2 0}$ Marks) P.T.O. Answer any one of the following questions from each module.
- (a) Write in detail the static and dynamic characteristics of instruments. 10
- (b) Explain the working principle of the following load cells.
- (i) Strain gauge (ii) Piezo electric.
- (a) State the principle of electric transducers list the advantages of electrical transducers. Discuss the parameters to be considered for selecting transducers.
- (b) With a neat diagram, explain pressure measurement using photo electric methods.
- (a) Derive the bridge balance of Maxwells bridge. Discuss its applications. 10
- (b) Explain capacitive and piezo electric humidity and moisture measurement systems. OR
- (a) Explain signal conditioning in measuring instruments.
- (b) With necessary diagrams explain ultrasonic and electro magnetic flow measurements.
- (a) With neat sketch describe digital storage oscilloscope. ..... 10
- (b) Explain the operation of Logic analyzers. ..... 10 OR
- (a) (i) Describe pulse characteristics and their terminologies. ..... 4 (ii) With necessary diagrams, explain pulse and square wave generators. ..... 6
- (b) Write in detail the working of CRO. ..... 10 Module - IV
- (a) Explain the protective concepts and enclosure classification designations fora measuring instrument located on a hazardous place.10
- (b) Discuss earth ground, grounding errors and grounding considerations. ..... 10 OR
- (a) Explain testing, calibration, wiring and cabling of a measuring instrument.10
- (b) Discuss the function of PLC. Explain its circuit layout and assembly. ..... 10( $\mathbf{4} \boldsymbol{\times} \mathbf{2 0} \boldsymbol{=} \mathbf{8 0}$ Marks)