Code No: 09A50406 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY, HYDERABAD

Electronic Measurements and Instrumentation

(Electronics and Communications Engineering)

Time: 3 hours Max. Marks: 75

Answer any five questions

All questions carry equal marks

- - -

1.a) Define the terms Accuracy, Error, Precision, Resolution, Expected value and

Sensitivity.

b) What is the difference between secondary standards and working standards?

c) Explain the working of a true value RMS voltmeter. [15]

2. Explain with the help of neat circuit diagram the working of dual slope DVM.

[15]

3.a) How broad band sweep frequencies generated using a sweep generator?

b) List the various controls on the front panel of the pulse generator and mention

their uses. [15]

4. Draw the circuit diagram and explain the working of a heterodyne type wave

analyzer. [15]

5.a) Derive the criterion for balance of a Kelvin’s bridge.

b) Describe the operation of the Wheat stone bridge with neat circuit diagram. [15]

6. Explain in-detail the principle, construction and operation a single beam CRO,

with a neat diagram. [15]

7.a) Explain the operating principles of LVDT.

b) Explain the construction and operation of strain gauge system for the

measurement of force.

c) What is the difference between thermocouple and thermistor? [15]

8.a) Compare a magnetic flow meter. With turbine flow meter

b) What is the operating principle of a better gauge?

c) Explain the operation of optical pyrometer. [15]

********

R09

4. Draw the circuit diagram and explain

analyzer. [15]

5.a) Derive the criterion for balance of a Kelvin’s bridge.

b) Describe the operation of the Wheat stone

6. Explain in-detail the principle, co

with a neat diagram. [15]

[15]

3.a) How broad band sweep frequencies generated using a sweep generator?

b) List the various controls on the front panel of the pulse generator and mention

their uses. [15]

4. Draw the circuit diagram and explain the working of a heterodyne type wave

analyzer. [15]

4. Draw the circuit diagram and explain

analyzer. [15]

5.a) Derive the criterion for balance of a Kelvin’s bridge.

b) Describe the operation of the Wheat stone

6. Explain in-detail the principle, co

with a neat diagram. [15]

[15]

3.a) How broad band sweep frequencies generated using a sweep generator?

b) List the various controls on the front panel of the pulse generator and mention

their uses. [15]

4. Draw the circuit diagram and explain the working of a heterodyne type wave

analyzer. [15]analyzer. [15]

5.a) Derive the criterion for balance of a Kelvin’s bridge.

b) Describe the operation of the Wheat stone

6. Explain in-detail the principle, co

b) List the various controls on the front panel of the pulse generator and mention

their uses. [15]

4. Draw the circuit diagram and explain the working of a heterodyne type wave

measurement of force.measurement of force.

7.a) Explain the operating principles of LVDT.

with a neat diagram. [15]with a neat diagram. [15]with a neat diagram. [15]

lance of a Kelvin’s bridge.lance of a Kelvin’s bridge.5.a) Derive the criterion for balance of a Kelvin’s bridge.5.a) Derive the criterion for ba5.a) Derive the criterion for ba5.a) Derive the criterion for ba5.a) Derive the criterion for ba5.a) Derive the criterion for ba5.a) Derive the criterion for ba

analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]analyzer. [15]

t panel of the pulse generator and mentiont panel of the pulse generator and mentiont panel of the pulse generator and mentiont panel of the pulse generator and mentionb) List the various controls on the front panel of the pulse generator and mentionb) List the various controls on the front panel of the pulse generator and mentionb) List the various controls on the fronb) List the various controls on the fronb) List the various controls on the fronb) List the various controls on the fronb) List the various controls on the fronb) List the various controls on the fronb) List the various controls on the fron

it diagram the working of dual slope DVM.it diagram the working of dual slope DVM.it diagram the working of dual slope DVM.it diagram the working of dual slope DVM.it diagram the working of dual slope DVM.2. Explain with the help of neat circu2. Explain with the help of neat circu2. Explain with the help of neat circu2. Explain with the help of neat circu

lue RMS voltmeter. [15]

secondary standards and working standards?

lue RMS voltmeter. [15]

secondary standards and working standards?

lue RMS voltmeter. [15]

secondary standards and working standards?

lue RMS voltmeter. [15]

secondary standards and working standards?

lue RMS voltmeter. [15]

b) What is the difference between

c) Explain the working of a true va

b) What is the difference between

c) Explain the working of a true va

b) What is the difference between

c) Explain the working of a true va

b) What is the difference between

c) Explain the working of a true va

Precision, Resolution, Expected value andPrecision, Resolution, Expected value andPrecision, Resolution, Expected value andPrecision, Resolution, Expected value and Precision, Resolution, Expected value and1.a) Define the terms Accuracy, Error,1.a) Define the terms Accuracy, Error,1.a) Define the terms Accuracy, Error,

Sensitivity.

1.a) Define the terms Accuracy, Error,

Answer any five questions

All questions carry equal marks

Answer any five questions

All questions carry equal marks

Answer any five questions

All questions carry equal marks

Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75

(Electronics and Communications Engineering)

Time: 3 hours Max. Marks: 75

(Electronics and Communications Engineering)

Time: 3 hours Max. Marks: 75

(Electronics and Communications Engineering)

Time: 3 hours Max. Marks: 75

(Electronics and Communications Engineering)

Time: 3 hours Max. Marks: 75

(Electronics and Communications Engineering)

Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75 Time: 3 hours Max. Marks: 75

Electronic Measurements and InstrumentationElectronic Measurements and InstrumentationElectronic Measurements and InstrumentationElectronic Measurements and InstrumentationElectronic Measurements and Instrumentation

CAL UNIVERSITY, HYDERABADCAL UNIVERSITY, HYDERABADCAL UNIVERSITY, HYDERABADCAL UNIVERSITY, HYDERABADJAWAHARLAL NEHRU TECHNOLOGIJAWAHARLAL NEHRU TECHNOLOGIJAWAHARLAL NEHRU TECHNOLOGIJAWAHARLAL NEHRU TECHNOLOGIJAWAHARLAL NEHRU TECHNOLOGI

B. Tech III Year I Semister Examinations, May/June – 2013

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