Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Systematic errors Random errors Environmental errors Gross errors Systematic errors Random errors Environmental errors Gross errors ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltmeter has 100 scale divisions and can measure up to 100 V. Each division can be read to ½ division. The resolution of the voltmeter is 1 V 0.5 V 2 V 1.5 V 1 V 0.5 V 2 V 1.5 V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be 0.5% 1% 1.5% 1.2% 0.5% 1% 1.5% 1.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The absolute measurement of resistance is done by Ohm’s law method Rayleigh method Lorenz method Bridge Method Ohm’s law method Rayleigh method Lorenz method Bridge Method ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be 100Hz 500Hz 50Hz 1kHz 100Hz 500Hz 50Hz 1kHz ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pressure coil of a wattmeter should be connected on the supply side of the current coil when Supply voltage is low Load impedance is high Load impedance is low None of these Supply voltage is low Load impedance is high Load impedance is low None of these ANSWER DOWNLOAD EXAMIANS APP
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