INTERNAL EXAMINATION 1Department: EIE Year/Semester: III / VISub: Modern Electronic Instrumentation Max. Marks: 50Date: 28-01-15Time: 1hr 30 min

PART A (5*2=10)1. What is the basic principle involved in time interval measurement?2. What is meant by auto ranging?3. Draw the block diagram for frequency meter.4. How are the different varieties of DVM differ?5. Why storage oscilloscopes are necessary in measurements?

PART B (40) 6. Describe the operations of microprocessor based DMM with auto ranging and self-diagnostic features with necessary diagrams (16)(or)7. Explain in detail about. 1. Digital voltmeter (8)2. Digital IC tester (8)

8. Explain how frequency & period are measured in digital instruments.(16)(or)9. (i) Draw the block diagram of CRO and describes its operations (8)(ii) Draw the schematic diagram of storage type oscilloscope and explain its operations (8)10. Explain the working principle of Q-meter. (8)

Staff incharge HOD/ECE

INTERNAL EXAMINATION 1Department: EIE Year/Semester: III / VISub: Modern Electronic Instrumentation Max. Marks: 50Date: 28-01-15 Time: 1hr 30 min

PART A (5*2=10)1. What is the basic principle involved in time interval measurement?2. What is meant by auto ranging?3. Draw the block diagram for frequency meter.4. How are the different varieties of DVM differ?5. Why storage oscilloscopes are necessary in measurements?

PART B (40) 6. Describe the operations of microprocessor based DMM with auto ranging and self-diagnostic features with necessary diagrams (16)(or)7. Explain in detail about. 3. Digital voltmeter (8)4. Digital IC tester (8)

8. Explain how frequency & period are measured in digital instruments.(16)(or)9. (i) Draw the block diagram of CRO and describes its operations (8)(ii) Draw the schematic diagram of storage type oscilloscope and explain its operations (8)10. Explain the working principle of Q-meter. (8)

Staff incharge HOD/ECE