Hi i did Electrical and Electronic Engineering
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Electrical and Electronics
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Measurements and Instrumentation
1.Which of the fallowing types of instrument is an integrating instrument?
a. Power factor meter
b. energy meter
c. watt meter
d.frequency meter
2. which of the material is used for the swamping resistance that is connected in series with the working coil of voltmeter ?
a.contantan b. manganin c. eureka d. nichrome
3. what are used to increase the range of ammeter
a. multipliers b. shunts c. control springs d.potential transformers
4. which voltmeters do you select for measuring 50KV Dc?
a.moving coil voltmeter b. hotwire voltmeter c. electro dynamo meter d.electrostatic voltmeter
5. which of the fallowing you will prefer to extend the range of an ac voltmeter?
a. low series resistance b. high resistance in parallel c. CT d.PT
6. High AC voltages are usually measured with
a. magnetic voltmeter b. inductive voltmeter c. potential transformers with voltmeters d. current transformers and voltmeters
7.creeping is the phenomena occurs in
a. voltmeter b. wattmeter c. energy meter d. ammeter
8. instrument is a device for determining
a.the magnitude of a quantity b. low resistance in parallel circuit
c. very fast response d. high resistance in series circuit
e. no passive elements
10. a dc wattmeter essentially consist of
a. two ammeters
b.two voltmeters
c. a voltmeter and an ammeter
a current and potential transformer
