Measurement and Instrumentation The power factor of a single phase load can be calculated if the instruments available are Any of the listed here One voltmeter, one ammeter and one wattmeter One voltmeter and one ammeter One ammeter, one voltmeter and one energy meter Any of the listed here One voltmeter, one ammeter and one wattmeter One voltmeter and one ammeter One ammeter, one voltmeter and one energy meter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are inclined at 30o. parallel. perpendicular. inclined at 60o. inclined at 30o. parallel. perpendicular. inclined at 60o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A variable w is related to three other variables x, y and z as w = xy/z. The variables are measured with meters of accuracy ± 0.5% reading, ± 1% of full scale value and ± 1.5% reading. The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum uncertainty in the measurement of w will be ± 6% ± 7% ± 8% ± 5% ± 6% ± 7% ± 8% ± 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The use of __________________ instruments is merely confined within laboratories as standardizing instrument. recording. indicating. integrating. absolute. recording. indicating. integrating. absolute. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An oscilloscope indicates Average value RMS value Peak to peak value of voltage DC value of voltage Average value RMS value Peak to peak value of voltage DC value of voltage ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The form factor in AC is the ratio of Peak value to rms value Rms value to average value Peak value to average value Rms value to peak value Peak value to rms value Rms value to average value Peak value to average value Rms value to peak value ANSWER DOWNLOAD EXAMIANS APP
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