Measurement and Instrumentation A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V? 2% 5% 3.33% 1% 2% 5% 3.33% 1% 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 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 Active power in R phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If an inductance is connected in one arm of the bridge and resistance is the remaining three arms The bridge can always be balanced None of the listed here The bridge can be balanced if the resistance have some specific values The bridge cannot be balanced The bridge can always be balanced None of the listed here The bridge can be balanced if the resistance have some specific values The bridge cannot be balanced ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation PMMC type instruments normally use Air friction damping Fluid friction damping None of these Eddy current damping Air friction damping Fluid friction damping None of these Eddy current damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In the bridge given in the figure, the reading of the high impedance voltmeter is 6.66 V. 4.20 V. Zero. - 3.33 V. 6.66 V. 4.20 V. Zero. - 3.33 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A thermo couple ammeter gives full scale deflection of 10 A, when it reads one fifth of the scale, the current will be 5.78 A. 4.47 A. 4 A. 2 A. 5.78 A. 4.47 A. 4 A. 2 A. ANSWER DOWNLOAD EXAMIANS APP
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