Measurement and Instrumentation Electrostatic instruments are used as Voltmeters only Both ammeter and voltmeter Ammeters only Wattmeter only Voltmeters only Both ammeter and voltmeter Ammeters only Wattmeter only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An ammeter is a Absolute instrument Recording instrument Secondary instrument Integrating instrument Absolute instrument Recording instrument Secondary instrument Integrating instrument ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Swamping resistance is used to compensate error due to strong magnetic field. both A and B. error due to temperature true variations. none of these. error due to strong magnetic field. both A and B. error due to temperature true variations. none of these. 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 current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures Active power in R phase Reactive power of R phase Active power of Y phase Power proportional to 3 phase power if the load is balanced Active power in R phase Reactive power of R phase Active power of Y phase Power proportional to 3 phase power if the load is balanced ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be 15 V. 10.6 V. 11.1 V. 12.6 V. 15 V. 10.6 V. 11.1 V. 12.6 V. ANSWER DOWNLOAD EXAMIANS APP
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