Measurement and Instrumentation Piezoelectronic accelerometer Has a low natural frequency. Should be used for low frequency. Should be used for high frequencies above 100 Hz. Should use a monitoring source at low input impedance. Has a low natural frequency. Should be used for low frequency. Should be used for high frequencies above 100 Hz. Should use a monitoring source at low input impedance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of an ammeter should be High Medium Infinity Very small High Medium Infinity Very small ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Commonly used instruments in power system measurement are Rectifier Moving coil or iron Induction Electrostatic Rectifier Moving coil or iron Induction Electrostatic ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read 5 A 0 A None of the listed here 2.5 A 5 A 0 A None of the listed here 2.5 A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used? 100 K ohms 99.99 ohms 99.99 K ohms 100 ohms 100 K ohms 99.99 ohms 99.99 K ohms 100 ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistance is measured by the voltmeter-ammeter method employing dc excitation and a voltmeter of very high resistance connected directly across the unknown resistance. If the voltmeter and ammeter reading are subject to maximum possible errors of ± 2.4 % and ± 1.0 % respectively, then the magnitude of the maximum possible percentage error in the value of resistance deduced from the measurement is nearly ± 2.4% ± 1.4% ± 1% ± 3.4% ± 2.4% ± 1.4% ± 1% ± 3.4% ANSWER DOWNLOAD EXAMIANS APP
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