Measurement and Instrumentation A 150 V moving iron voltmeter of accuracy class 1-0 reads 75 V when used in a circuit under standard condition. The maximum possible percentage error in the reading is 2% 1% 2.5% 1.5% 2% 1% 2.5% 1.5% 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 10 µF. 0.09 µF. 11 µF. 0.1 µF. 10 µF. 0.09 µF. 11 µF. 0.1 µF. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Moving iron Dynamometer Hot wire Thermocouple Moving iron Dynamometer Hot wire Thermocouple ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A. 2 5 4 1 2 5 4 1 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 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. One of the wattmeter connections will have to be reversed ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which devices used to measure the temperature of an object ? Poteintiometer Galvanometer Odometer Thermometers Poteintiometer Galvanometer Odometer Thermometers ANSWER DOWNLOAD EXAMIANS APP
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