Measurement and Instrumentation Resistances can be measured with the help of Wattmeters Voltmeters Ammeters Ohmmeters and resistance bridges Wattmeters Voltmeters Ammeters Ohmmeters and resistance bridges ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Deflection method direct measurements are most widely used as these are least time consuming. most simple. most simple and least time consuming. most accurate. least time consuming. most simple. most simple and least time consuming. most accurate. ANSWER DOWNLOAD EXAMIANS APP
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 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. 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 ± 1.5) A (400 ± 2.24) A (400 ± 1) A (400 ± 3) A (400 ± 1.5) A (400 ± 2.24) A (400 ± 1) A (400 ± 3) A 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 3% 4% 6% 5% 3% 4% 6% 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving iron ammeter may be compensated for frequency errors by Shunt capacitance A shunt resistance A series inductance Series resistance Shunt capacitance A shunt resistance A series inductance Series resistance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS