APgenco Model Paper Measurements and Instrumentation 2019

APgenco Model Paper Measurements and Instrumentation 2019.

1. Which of the following types of instrument is an integrating instrument?

1. power factor meter
2. energy meter
3. wattmeter
4. frequent meter

· Which of the material is used for the ’swamping’ resistance that is connected in series with the working coil of a voltmeter?

1. Constantan
2. Manganin
3. Eureka
4. Nichrome

· What are used to increase the range of ammeters.

1. Multipliers
2. Shunts
3. Control Springs
4. Potential transformers

· Which voltmeter do you select for measuring 50KV DC?

1. Moving Coil Voltmeter
2. Hot wire voltmeter
3. Electro Dynamo meter
4. Electrostatic Voltmeter

· Which of the following you will prefer to extend the range of an ac voltmeter?

1. Low series resistance
2. high resistance in parallel
3. CT
4. PT

· High AC voltages are usually measured with

1. magnetic voltmeter
2. inductive voltmeter
3. potential transformers with voltmeters
4. current transformers and voltmeters

· Creeping is the phenomena occurs in

1. voltmeter
2. wattmeter
3. energy meter
4. ammeter

See Also……