Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Dynamometer Hot wire Moving iron Thermocouple Dynamometer Hot wire Moving iron Thermocouple ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Double the power rating of the resistor Increase the thermal stability Reduce the tolerance Reduce the inductance of winding Double the power rating of the resistor Increase the thermal stability Reduce the tolerance Reduce the inductance of winding ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The transfer instrument which is used for standardization of a polar type AC potentiometer is a moving coil instrument. a dynamometer instrument. an electrostatic instrument. a thermal instrument. a moving coil instrument. a dynamometer instrument. an electrostatic instrument. a thermal instrument. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Instrument transformers are Current transformers Both current and potential transformers Pottential transformers Power transformers Current transformers Both current and potential transformers Pottential transformers Power transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For power measurement of three phase circuit by two wattmeter method, when the value of power factor is less than 0.5 lagging One of the wattmeter connections will have to be reversed One of the wattmeters will read zero Both give the same readings Pressure coil of the wattmeter will become ineffective. One of the wattmeter connections will have to be reversed One of the wattmeters will read zero Both give the same readings Pressure coil of the wattmeter will become ineffective. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Assertion (A): A hot wire ammeter has a cramped scale. Reason (R): The heat is proportional to square of current. A is ture and R is false. A is false and R is ture. Both A and R are true and R is correct explanation of A. Both A and R are true and R is not correct explanation of A. A is ture and R is false. A is false and R is ture. Both A and R are true and R is correct explanation of A. Both A and R are true and R is not correct explanation of A. ANSWER DOWNLOAD EXAMIANS APP
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