Measurement and Instrumentation A moving iron instrument can be used for Both DC& AC AC only DC only None of the listed here Both DC& AC AC only DC only None of the listed here 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? 3.33% 5% 2% 1% 3.33% 5% 2% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The measurment of very low and very high frequencies is invariably done using a frequency counter in which one of the following? Frequency measurment modes only. Frequency and period measurment modes, respectively. Period and frequency measurement modes respectively. Period measurment modes only. Frequency measurment modes only. Frequency and period measurment modes, respectively. Period and frequency measurement modes respectively. Period measurment modes only. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power? 32.56 W . 25.45 W. None of these 28.12 W. 32.56 W . 25.45 W. None of these 28.12 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A first order instrument is characterized by Static sensitivity and time constant Static sensitivity and damping coefficient Time constant only Static sensitivity, damping coefficient and natural frequency of oscillations Static sensitivity and time constant Static sensitivity and damping coefficient Time constant only Static sensitivity, damping coefficient and natural frequency of oscillations ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following are needed both for protection and metering? Power factor meters. Energy meter. Instrument transformer. Wattmeters. Power factor meters. Energy meter. Instrument transformer. Wattmeters. ANSWER DOWNLOAD EXAMIANS APP
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