Electronic Instruments and Measurements - Dec 2013

Electronics Engineering (Semester 3)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.

Solve all :-

1 (a) Define the following terms :-
(i) Accuracy (ii) Precision (iii) Sensitivity
(iv) Linearity (v) Resolution (5 marks) 1 (b) Write the application of Q-meters.(5 marks) 1 (c) Estimate the Bandwidth of CRO if a signal of 12 MS rise time is observed as the signal with 15 MS rise time(5 marks) 1 (d) Write the selection criteria of transducer(5 marks) 2 (a) Write short notes on "Resistance strain guages".(10 marks) 2 (b) List the types of liquid level measurements. Explain any two in detail.(10 marks) 3 (a) Compare the temperature measurement transducer RTD, thermistors and thermcouples on the basis of principle, charcteristics, range and applications.(10 marks) 3 (b) Explain the magnetic flow meter in detail.(10 marks) 4 (a) Draw and explain the block diagram of data logger.(10 marks) 4 (b) Explain the measurement of unknown resistance using Kelvin double bridge(10 marks) 5 (a) Draw and explain the generalized block diagram of the CRO(10 marks) 5 (b) Explain the linear variable differential transformer in detail(10 marks) 6 (a) What are the types of error in measurements? Explain all in details(10 marks) 6 (b) Draw and explain the block diagram of digital storage oscilloscope. Also write the application of DSO(10 marks)