Measurement and Instrumentation Which one of the following meters has maximum loading effect on the circuit under measurement ? 1 MΩ/volt 100 Ω/volt 10 MΩ/volt 1000 Ω/volt 1 MΩ/volt 100 Ω/volt 10 MΩ/volt 1000 Ω/volt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.25 A. 0.50 A. 0.67 A. 0.70 A. 0.25 A. 0.50 A. 0.67 A. 0.70 A. 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 21.1 rpm. 16.02 rpm. 18.2 rpm. 12.8 rpm. 21.1 rpm. 16.02 rpm. 18.2 rpm. 12.8 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A set of independent current measurements taken by four observers was recorded as : 117.02 mA, 117.11 mA, 117.08 mA and 117.03 mA. What is the range of error ? ± 0.045 ± 0.065 ± 0.056 ± 0.054 ± 0.045 ± 0.065 ± 0.056 ± 0.054 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The use of thermocouple meters for AC measurement leads to scale which is logarithmic. square law. expontial. linear. logarithmic. square law. expontial. linear. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The smallest change in measured variable to which instrument will respond is sensitivity. resolution. precision. accuracy. sensitivity. resolution. precision. accuracy. ANSWER DOWNLOAD EXAMIANS APP
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