Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High load on the transformer Power frequencies High frequencies Low frequencies High load on the transformer Power frequencies High frequencies Low frequencies ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Most sensitive galvanometer is Elastic galvanometer Duddle galvanometer Vibration galvanometer Spot ballastic galvanometer Elastic galvanometer Duddle galvanometer Vibration galvanometer Spot ballastic galvanometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A megger is usually Electro-static type instrument Moving coil type instrument Moving iron type instrument Hot-wire type instrument Electro-static type instrument Moving coil type instrument Moving iron type instrument Hot-wire type instrument 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 ? ± 0.056 ± 0.045 ± 0.065 ± 0.054 ± 0.056 ± 0.045 ± 0.065 ± 0.054 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 international ohm Standard ohm One ohm according to SI units One ohm according to working standards One international ohm Standard ohm One ohm according to SI units One ohm according to working standards ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ± 1) A (400 ±5) A (400 ± 2.24) A (400 ± 3) A (400 ± 1) A (400 ±5) A (400 ± 2.24) A (400 ± 3) A ANSWER DOWNLOAD EXAMIANS APP
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