Measurement and Instrumentation What is the approximate input impedance of a CRO? 1 MΩ 0 100 MΩ 10 MΩ 1 MΩ 0 100 MΩ 10 MΩ ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is 20. 54.2. 25.4. 31.4. 20. 54.2. 25.4. 31.4. 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 ± 1.4% ± 1% ± 2.4% ± 3.4% ± 1.4% ± 1% ± 2.4% ± 3.4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Attraction and repulsion type instruments are the two different types of which instrument ? Induction type. Dynamo-meter type. Multipliers. Moving iron type. Induction type. Dynamo-meter type. Multipliers. Moving iron type. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A megger is usually Electro-static type instrument Moving iron type instrument Moving coil type instrument Hot-wire type instrument Electro-static type instrument Moving iron type instrument Moving coil type instrument Hot-wire type instrument ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Symmetric errors are Instrument errors Observational errors All of the listed here Environment errors Instrument errors Observational errors All of the listed here Environment errors ANSWER DOWNLOAD EXAMIANS APP
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