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 lag. 0.917 lead. 0.6 lead. 0.917 lag. 0.6 lag. 0.917 lead. 0.6 lead. 0.917 lag. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation ______ movement is most expensive. Dynamometer Moving iron D'Arsonval movement None of the listed here Dynamometer Moving iron D'Arsonval movement None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation How many time-base circuits does a dual face CRO can have? 4. 2. 3. 1. 4. 2. 3. 1. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wien bridge is useful for measuring Very high frequency High frequency Medium frequency Low frequency Very high frequency High frequency Medium frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be 250 V. 252 V. 260 V. 248 V. 250 V. 252 V. 260 V. 248 V. 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. 5 V, 1 ms. 7.5 V, 2 ms. 5 V, 2 ms. 10 V, 1 ms. 5 V, 1 ms. 7.5 V, 2 ms. 5 V, 2 ms. ANSWER DOWNLOAD EXAMIANS APP
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