Measurement and Instrumentation Which one of the following meters has maximum loading effect on the circuit under measurement ? 1 MΩ/volt 10 MΩ/volt 100 Ω/volt 1000 Ω/volt 1 MΩ/volt 10 MΩ/volt 100 Ω/volt 1000 Ω/volt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Most accurate measurement of unknown resistance will be by Potentiometer Voltmeter and ammeter Ohmmeter Wheatstone bridge Potentiometer Voltmeter and ammeter Ohmmeter Wheatstone bridge 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 5.2% 10.2% 25.2% 1.2% 5.2% 10.2% 25.2% 1.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is 0.917 lag. 0.6 lag. 0.917 lead. 0.6 lead. 0.917 lag. 0.6 lag. 0.917 lead. 0.6 lead. 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% ± 3.4% ± 2.4% ± 1.4% ± 1% ± 3.4% ± 2.4% ± 1.4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance can be measured most accurately by Multimeter Voltmeter-ammeter method Bridge method Megger Multimeter Voltmeter-ammeter method Bridge method Megger ANSWER DOWNLOAD EXAMIANS APP
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