Measurement and Instrumentation PMMC type instruments normally use Air friction damping Eddy current damping Fluid friction damping None of these Air friction damping Eddy current damping Fluid friction damping None of these 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 ± 3.4% ± 1% ± 2.4% ± 1.4% ± 3.4% ± 1% ± 2.4% ± 1.4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Piezoelectronic accelerometer Has a low natural frequency. Should be used for high frequencies above 100 Hz. Should be used for low frequency. Should use a monitoring source at low input impedance. Has a low natural frequency. Should be used for high frequencies above 100 Hz. Should be used for low frequency. Should use a monitoring source at low input impedance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A galvanometer has Fluid friction damping Spring coil damping Eddy current damping Air friction damping Fluid friction damping Spring coil damping Eddy current damping Air friction damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Environmental errors Random errors Systematic errors Gross errors Environmental errors Random errors Systematic errors Gross errors ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a CRO which of following is not a part of electron gun? Accelerating anode Grid Cathode X-Y plates Accelerating anode Grid Cathode X-Y plates ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS