Measurement and Instrumentation A bridge circuit is shown in the figure below. Which one of the sentence given below is most suitable for balancing the bridge? First adjust R2 and then adjust R3. First adjust R4 and then adjust R2. First adjust R2 and then adjust R4. First adjust R4 and then adjust R1. First adjust R2 and then adjust R3. First adjust R4 and then adjust R2. First adjust R2 and then adjust R4. First adjust R4 and then adjust R1. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resolution of an instrument is ability to distinguish polarity. the maximum quantity it can measure. the maximum non linearity. the minimum quantity it can measure. ability to distinguish polarity. the maximum quantity it can measure. the maximum non linearity. the minimum quantity it can measure. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read 20. 10√3. 20√3. 10. 20. 10√3. 20√3. 10. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Reduce the tolerance Double the power rating of the resistor Reduce the inductance of winding Increase the thermal stability Reduce the tolerance Double the power rating of the resistor Reduce the inductance of winding Increase the thermal stability ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The time/div and voltage axes of an oscilloscope have been creased. A student connects a 1 KHz, 5 V P-P square wave calibrition pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (P-P) and period of the unknown signal are respectively 10 V, 1 ms. 7.5 V, 2 ms. 5 V, 1 ms. 5 V, 2 ms. 10 V, 1 ms. 7.5 V, 2 ms. 5 V, 1 ms. 5 V, 2 ms. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is 0.6 lead. 0.917 lead. 0.6 lag. 0.917 lag. 0.6 lead. 0.917 lead. 0.6 lag. 0.917 lag. ANSWER DOWNLOAD EXAMIANS APP
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