Measurement and Instrumentation Schering bridge is used to measure which of the following? Inductance. Frequency. Capacitance. Resistance. Inductance. Frequency. Capacitance. Resistance. 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. 10 µF. 11 µF. 0.1 µF. 0.09 µF. 10 µF. 11 µF. 0.1 µF. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Magnetic deflection is inversely proportional to Voltage. (Voltage)1.5. (Voltage)-0.5. (Voltage)2. Voltage. (Voltage)1.5. (Voltage)-0.5. (Voltage)2. ANSWER DOWNLOAD EXAMIANS APP
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 2.5% 2% 1.5% 1% 2.5% 2% 1.5% 1% 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? 150W 50W 200W 100W 150W 50W 200W 100W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures Active power in R phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced Active power of Y phase Active power in R phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced Active power of Y phase ANSWER DOWNLOAD EXAMIANS APP
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