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 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance in the circuit of the moving coil of a dynamometer wattmeter should be Almost zero Low None of the listed here High Almost zero Low None of the listed here High 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 400V and 200V One of the meters out of the range and other 100V 300V each 360V and 240V 400V and 200V One of the meters out of the range and other 100V 300V each 360V and 240V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An induction wattmeter can be used for Both DC and AC Any of the listed here Ac only Dc only Both DC and AC Any of the listed here Ac only Dc only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured as I1 = 150 ± 1A , I2 = 250 ± 2A, where the limits of error are as standard deviations. I is measured as (400 ± 2.24) A (400 ± 1.5) A (400 ± 3) A (400 ± 1) A (400 ± 2.24) A (400 ± 1.5) A (400 ± 3) A (400 ± 1) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An electric pyrometer is an instrument used to measure None of the listed here Frequency High temperatures Phase None of the listed here Frequency High temperatures Phase ANSWER DOWNLOAD EXAMIANS APP
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