Measurement and Instrumentation In two wattmeter method of power measurement if the total power is measured by one wattmeter only then power factor of the system is 0. none of above. 1. 0.5. 0. none of above. 1. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What are the SI units of mass, length and time respectively? g, m and s. g, cm and s. kg, m and s. kg, cm and s. g, m and s. g, cm and s. kg, m and s. kg, cm and s. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when R1 = 3R2. R1 = R2. R1 = R2/2. R1 = 2R2. R1 = 3R2. R1 = R2. R1 = R2/2. R1 = 2R2. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from The same source as the unknown voltage. A battery. A source other than the source of unknown voltage. Any of above. The same source as the unknown voltage. A battery. A source other than the source of unknown voltage. Any of above. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is None of these All right Faulty Short-circuited None of these All right Faulty Short-circuited ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is 600∠-150° ohm. 150∠30° ohm. 400∠-90° ohm. 300∠90° ohm. 600∠-150° ohm. 150∠30° ohm. 400∠-90° ohm. 300∠90° ohm. ANSWER DOWNLOAD EXAMIANS APP
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