Measurement and Instrumentation Which of the following essential featuresis possessed by an indicating instrument? Damping device All of the listed here Controlling device Deflecting device Damping device All of the listed here Controlling device Deflecting device 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% ± 1.4% ± 2.4% ± 1% ± 3.4% ± 1.4% ± 2.4% ± 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A dynamometer wattmeter can be used for AC only Any of the listed here DC only Both DC and AC AC only Any of the listed here DC only Both DC and AC ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure ac as well as dc power, we use Induction wattmeter Sometimes induction and sometimes dynamometer wattmeter Dynamometer wattmeter None of the listed here Induction wattmeter Sometimes induction and sometimes dynamometer wattmeter Dynamometer wattmeter None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a ballistic galvanometer, the deflecting torque is proportional to Square of current through coil Sine of measured The current through coil Square-root of current through coil Square of current through coil Sine of measured The current through coil Square-root of current through coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ? ± 3.0% ±0.5% ±3.5% ± 1.5% ± 3.0% ±0.5% ±3.5% ± 1.5% ANSWER DOWNLOAD EXAMIANS APP
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