Measurement and Instrumentation For handling greater currents induction watt-meters are used in conjunction with Current transformers Either of the above Potential transformers Power transformers Current transformers Either of the above Potential transformers Power transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When using ohmmeter, applied voltage is to be disconnected from the circuit because None of these Voltage source will increase resistance Current will decrease resistance The ohmmeter has its own internal battery None of these Voltage source will increase resistance Current will decrease resistance The ohmmeter has its own internal battery ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read 5 A None of the listed here 2.5 A 0 A 5 A None of the listed here 2.5 A 0 A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 200W 150W 100W 50W 200W 150W 100W 50W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When the pointer of an indicating instrument comes to rest in the final deflected position, ______ Only controlling torque acts None of the listed here Both deflecting and controlling torques act Only deflecting torque acts Only controlling torque acts None of the listed here Both deflecting and controlling torques act Only deflecting torque acts ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The function of shunt in an ammeter is to None of the listed here By pass the current Increase the sensitivity of the ammeter Increase the resistance of ammeter None of the listed here By pass the current Increase the sensitivity of the ammeter Increase the resistance of ammeter ANSWER DOWNLOAD EXAMIANS APP
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