Measurement and Instrumentation A thermo couple ammeter gives full scale deflection of 10 A, when it reads one fifth of the scale, the current will be 5.78 A. 2 A. 4 A. 4.47 A. 5.78 A. 2 A. 4 A. 4.47 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 1 0.73 0.84 0.65 1 0.73 0.84 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is 300∠90° ohm. 600∠-150° ohm. 150∠30° ohm. 400∠-90° ohm. 300∠90° ohm. 600∠-150° ohm. 150∠30° ohm. 400∠-90° ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ryall crest voltmeter is used for measurement of Low frequency voltage High AC voltage High DC voltage AC voltage of any form Low frequency voltage High AC voltage High DC voltage AC voltage of any form ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resistance of a VARISTOR varies with Voltage Current Both Voltage and Temperature Temperature Voltage Current Both Voltage and Temperature Temperature ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Systematic errors are All of these observational errors. instrument errors. environmental errors. All of these observational errors. instrument errors. environmental errors. ANSWER DOWNLOAD EXAMIANS APP
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