Measurement and Instrumentation 0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is 3% 1% 2% 4% 3% 1% 2% 4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 18.2 rpm. 16.02 rpm. 12.8 rpm. 21.1 rpm. 18.2 rpm. 16.02 rpm. 12.8 rpm. 21.1 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is 1.2% 5.2% 10.2% 25.2% 1.2% 5.2% 10.2% 25.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices should be used for accurate measurement of low D.C. voltage? Small range thermocouple voltmeter Small range moving coil voltmeter None of these C. potentiometer Small range thermocouple voltmeter Small range moving coil voltmeter None of these C. potentiometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are 360V and 240V 400V and 200V 300V each One of the meters out of the range and other 100V 360V and 240V 400V and 200V 300V each One of the meters out of the range and other 100V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of All of above. Contact resistance. Thermoelectric emfs. Resistance of connecting leads. All of above. Contact resistance. Thermoelectric emfs. Resistance of connecting leads. ANSWER DOWNLOAD EXAMIANS APP
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