Measurement and Instrumentation The expected value of the voltage across a resistor is 80 V, and the measured value is 79 V. What is the percentage error and relative accuracy of the measurement ? 1.5% & 99% 1.25% & 98.75% 1.25% & 98.25% 1.5% & 98.75% 1.5% & 99% 1.25% & 98.75% 1.25% & 98.25% 1.5% & 98.75% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An ammeter of range 0-25 A has a guaranteed accuracy of 1% of full-scale reading. The current measured by the ammeter is 5 A. The limiting error in the reading is 4% 6% 5% 3% 4% 6% 5% 3% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The power factor of a single phase load can be calculated if the instruments available are One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter Any of the listed here One voltmeter and one ammeter One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter Any of the listed here One voltmeter and one ammeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The multiplier and the meter coil in a voltmeter are in Series None of the listed here Parallel Series-parallel Series None of the listed here Parallel Series-parallel ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Reduce the tolerance Double the power rating of the resistor Increase the thermal stability Reduce the inductance of winding Reduce the tolerance Double the power rating of the resistor Increase the thermal stability Reduce the inductance of winding ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance offered to the passage of an in-varying current by a column of mercury at the temperature of melting ice of mass 14.4521 gms of uniform cross-sectional area and length 106.3cm is One ohm according to working standards Standard ohm One international ohm One ohm according to SI units One ohm according to working standards Standard ohm One international ohm One ohm according to SI units ANSWER DOWNLOAD EXAMIANS APP
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