Exam Details
| Subject | Electrical Measurements And Measuring Instruments | |
| Paper | ||
| Exam / Course | B.Tech. VIEP- Electrical Engineering III (BTCSVI/BTECVI/BTELVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
Distinguish between the Direct and Indirect methods of measurement. Cite examples to support your answer.
Define the terms
Repeatability
Accuracy
Precision
Resolution
Linearity
Define Limiting (Guarantee) errors, and also derive the expression for relative limiting error.
Discuss the different types of errors with suitable examples and explain the measures taken to minimize the following errors:
Instrumental Errors
Environmental Errors
Observational Errors
Define and explain the working principle of a current transformer.
Explain the Absolute Null method for testing of a potential transformer.
Describe the working of a Carey-Foster slide-wire bridge.
List the various methods used for the measurement of low resistance. Explain anyone method with the help of a neat diagram.
5. Derive the general equation for balance for an AC bridge. Also prove that two conditions i.e. for magnitude and phase have to be satisfied.
Define the following photometric terms:
Lumen
Luminous Intensity
Illuminance
Luminance.
Luminous Excitance
Describe the construction and working of a two element induction type energy meter.
Draw and explain the working principle of co-ordinate type AC potentiometer.
Calculate the inductance of a coil from the following measurement on an AC potentiometer, voltage drop across a 0.1 ohm standard resistor connected in series with the coil 0.613L12° voltage across the test coil through a 100/1 volt ratio box 0.781L50° volt, frequency 50 hz.
8. Explain the working of electro-resonance type power factor meter. Draw the phasor diagram under different power factor conditions.
9. Explain the Digital Voltmeter (DVM). Classify the various types and explain the Ramp type digital voltmeter, with the help of a neat diagram.
10. Describe the working of strip-chart recorder. What are the different types of tracing systems used in it Explain with the help of a suitable diagram.
Define the terms
Repeatability
Accuracy
Precision
Resolution
Linearity
Define Limiting (Guarantee) errors, and also derive the expression for relative limiting error.
Discuss the different types of errors with suitable examples and explain the measures taken to minimize the following errors:
Instrumental Errors
Environmental Errors
Observational Errors
Define and explain the working principle of a current transformer.
Explain the Absolute Null method for testing of a potential transformer.
Describe the working of a Carey-Foster slide-wire bridge.
List the various methods used for the measurement of low resistance. Explain anyone method with the help of a neat diagram.
5. Derive the general equation for balance for an AC bridge. Also prove that two conditions i.e. for magnitude and phase have to be satisfied.
Define the following photometric terms:
Lumen
Luminous Intensity
Illuminance
Luminance.
Luminous Excitance
Describe the construction and working of a two element induction type energy meter.
Draw and explain the working principle of co-ordinate type AC potentiometer.
Calculate the inductance of a coil from the following measurement on an AC potentiometer, voltage drop across a 0.1 ohm standard resistor connected in series with the coil 0.613L12° voltage across the test coil through a 100/1 volt ratio box 0.781L50° volt, frequency 50 hz.
8. Explain the working of electro-resonance type power factor meter. Draw the phasor diagram under different power factor conditions.
9. Explain the Digital Voltmeter (DVM). Classify the various types and explain the Ramp type digital voltmeter, with the help of a neat diagram.
10. Describe the working of strip-chart recorder. What are the different types of tracing systems used in it Explain with the help of a suitable diagram.
Other Question Papers
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Subjects
- Active Filter Design
- Advanced Control System
- Advanced Power Electronics
- Applied Electromagnetics
- Basics Of Electrical Engineering
- Computer Process Control
- Control System
- Digital Electronics
- Electric Energy Utilization
- Electrical And Electronics Engineering Materials
- Electrical Instrumentation
- Electrical Machine - I
- Electrical Machines - Ii
- Electrical Machines And Electronics
- Electrical Measurements And Measuring Instruments
- Electro Mechanical Energy Conversion - I
- Electro-Mechanical Energy Conversion - Ii
- Electro-Mechanical Energy Conversion-Iii
- Electromagnetic Theory
- Energy Auditing And Analysis
- High Voltage Engineering
- Industrial Drives
- Micro Controllers
- Microprocessor And Applications
- Network Theory
- Power Quality Issues And Remedial Measures
- Power System
- Power System - I
- Stochastic Control Systems
- Switchgear And Protection