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Measurement and Instrumentation

Measurement and Instrumentation
The rectifier instrument is not free from

Temperature error
Wave shape error
Frequency error
All of the listed here

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Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as

 (400 ± 2.24) A
 (400 ±5) A
 (400 ± 3) A
 (400 ± 1) A

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Measurement and Instrumentation
To measure high frequency currents, we mostly use ______ ammeter.

Dynamometer
Thermocouple
Moving iron
Hot wire

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Measurement and Instrumentation
Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are

One of the meters out of the range and other 100V
300V each
400V and 200V
360V and 240V

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Measurement and Instrumentation
Standard resistor ia made from

Silver
Platinum
Manganin
Nichrome

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Measurement and Instrumentation
The errors introduced by an instrument fall in which category ?

 Systematic errors
 Gross errors
 Environmental errors
 Random errors

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MORE MCQ ON Measurement and Instrumentation

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