Measurement and Instrumentation Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is 0.917 lag. 0.6 lead. 0.917 lead. 0.6 lag. 0.917 lag. 0.6 lead. 0.917 lead. 0.6 lag. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following instruments can be used to measure AC current only? Moving iron voltmeter Permanent Magnet Type ammeter Moving iron ammeter Induction type ammeter Moving iron voltmeter Permanent Magnet Type ammeter Moving iron ammeter Induction type ammeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A first order instrument is characterized by Static sensitivity and damping coefficient Static sensitivity, damping coefficient and natural frequency of oscillations Time constant only Static sensitivity and time constant Static sensitivity and damping coefficient Static sensitivity, damping coefficient and natural frequency of oscillations Time constant only Static sensitivity and time constant ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltage of 2.70 V is being measured by an analog indicating instrument having a scale range of 0 – 5.0 V. If the instrument reads 2.65 V, then absolute error in measurement is 0.05V 0.01V 0.25V 0.01V 0.05V 0.01V 0.25V 0.01V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The scale of a rectifier instrument is Non-linear Linear Either linear or non linear None of the listed here Non-linear Linear Either linear or non linear None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is Zero. √2V. 2V. 2√2V. Zero. √2V. 2V. 2√2V. ANSWER DOWNLOAD EXAMIANS APP
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