Measurement and Instrumentation The calibration of a voltmeter can be carried out by using A function generator. An ammeter. A frequency meter. A potentiometer. A function generator. An ammeter. A frequency meter. A potentiometer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Figure show an RC potentiometer to measure AC voltage. It is desire that Vo/Vi should be independent of frequency. The value of C shoud be 0.09 µF. 11 µF. 0.1 µF. 10 µF. 0.09 µF. 11 µF. 0.1 µF. 10 µF. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A CRO can display AC signals DC signals Both AC and DC signals Time invariant signals AC signals DC signals Both AC and DC signals Time invariant signals ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A Manganin swap resistance is connected in series with a moving coil ammeter consisting of a milli ammeter and a suitable shunt in order to Minimize the effect of stray magnetic fields. Minimize the effect of temperature variation. Obtaine large deflecting torque. Reduce the size of the meter. Minimize the effect of stray magnetic fields. Minimize the effect of temperature variation. Obtaine large deflecting torque. Reduce the size of the meter. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as 1000 rev/KWh. 3750 rev/KWh. 960 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. 960 rev/KWh. 3600 rev/KWh. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The thermocouple instruments do not have High degree of measuring accuracy Absence of frequency error High sensitivity Independence of ambient temperature High degree of measuring accuracy Absence of frequency error High sensitivity Independence of ambient temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS