SRM University 2007 B.Tech Electronics and Communications Engineering Bank : Electronic Measurement

compute (a) the value of shunt resistor
(b) the value of current limiting resistor.

12 Explain briefly an electrodynamometer instrument.
13 Explain rectifier kind instruments.
14 discuss with the help of a neat circuit diagram, the working of a ramp kind digital voltmeter .
15 discuss with the help of a neat circuit diagram, the working of a stair- case ramp digital voltmeter
16 Briefly discuss how dual -slope A/D converter is used for DVM.
17 Explain with the help of a neat circuit diagram, the working of a successive –approximation DVM .
18 Briefly discuss the vector voltmeter.
19 Briefly discuss the guarding techniques.
20 Briefly discuss the automation in voltmeter.
UNIT - III

PART – A
43. What is function generator?
44. What is sweep generator?
45. Give the applications of RF signal generator and function generator?
46. What are the advantages of using direct frequency synthesis rather than indirect synthesis?
47. On which factor the performance of beat frequency oscillator depends?
48. Explain briefly laboratory kind square wave and pulse generator?
49. Give different terminologies of pulse.
50. List the requirements of pulse generator.
51. Compare standard and modern signal generators.
52. What is programmable pulse generator?
53. What is spectrum analysis? Which info can be found from the spectrum analysis of a signal?
54. Discuss the characteristics and features of spectrum analyzer.
55. Explain the method used to analyze the frequency spectrum of signals in GHz range?
56. What is wave analyzer?
57. What is distortion analyzer?
58. What is harmonic distortion?
59. Write short notes on distortion factor meter.
60. Define frequency resolution, sensitivity, dynamic range, sweep desensitization of a spectrum analyzer.
61. What is meant by harmonic mixing in a spectrum analyzer?
62. What do you mean by logic analyzer?
63. Explain the use of logic analyzer in the fault diagnosis in digital systems.
64. What is the function of storage qualifier in a logic analyzer?
65. Write the different modes used in a logic analyzer to store data in memory?
66. What is FFT analyzer?
67. Write the kinds of wave analyzer?
68. What is the sensitivity of the wheatstone bridge?
69. Compare Maxwell bridge with Hay’s bridge?
70. List the advantages of using standard capacitor in Maxwell bridge.
71. Why kelvin’s bridge is preferred.

Earning:   Approval pending.