Measurement and Instrumentation Which of the following meter is most suitable for measuring radio frequency currents? Thermocouple meter. Moving - iron meter. VTVM. Moving - coil meter. Thermocouple meter. Moving - iron meter. VTVM. Moving - coil meter. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 12.8 rpm. 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. 21.1 rpm. 18.2 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V? 5% 1% 3.33% 2% 5% 1% 3.33% 2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To increase Q factor of a coil, the wire should be thin. long and thin. long. thick. thin. long and thin. long. thick. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following are integrating instruments? Wattmeters Voltmeters Ampere hour and watt hour meters Ammeters Wattmeters Voltmeters Ampere hour and watt hour meters Ammeters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ± 2.5% ± 1.5% ± 1% ±3.5% ± 2.5% ± 1.5% ± 1% ±3.5% ANSWER DOWNLOAD EXAMIANS APP
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