Measurement and Instrumentation Electrostatic instruments are used as Both ammeter and voltmeter Wattmeter only Ammeters only Voltmeters only Both ammeter and voltmeter Wattmeter only Ammeters only Voltmeters only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Two capacitance, C1 = 150 ± 2.4µF and C2 = 120 ± 1.5 µF are connected in parallel. What is the limiting error of the resultant capacitance C (in µF) ? 1.5µF 2.4µF 0.9µF 3.9µF 1.5µF 2.4µF 0.9µF 3.9µF ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Deflection method direct measurements are most widely used as these are least time consuming. most simple and least time consuming. most accurate. most simple. least time consuming. most simple and least time consuming. most accurate. most simple. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The form factor in AC is the ratio of Peak value to average value Rms value to peak value Rms value to average value Peak value to rms value Peak value to average value Rms value to peak value Rms value to average value Peak value to rms value ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is 114.6 μH/radian. 12.0 μH/radian. 4.8 μH/radian. 2.0 μH/radian. 114.6 μH/radian. 12.0 μH/radian. 4.8 μH/radian. 2.0 μH/radian. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which instrument has identical calibration for ac as well as dc values? Moving iron type Moving coil type Hot wire type Induction type Moving iron type Moving coil type Hot wire type Induction type ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS