Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Potential coil Current coil and potential coil Current coil None of the listed here Potential coil Current coil and potential coil Current coil None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The repeat accuracy of an instrument can be judged from its Dynamic error Static error Standard deviation of error Linearity error Dynamic error Static error Standard deviation of error Linearity error 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 Active power of Y phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced Active power in R phase Active power of Y phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The terminals across the source are ______________________________ if a current source is to be neglected. replaced by a source resistance short circuited replaced by a capacitor open circuited replaced by a source resistance short circuited replaced by a capacitor open circuited ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then V1 = 0V and V2 = 0V. V1 = 300V and V2 = 200V. V1 = 200V and V2 = 300V. V1 = 250V and V2 = 250V. V1 = 0V and V2 = 0V. V1 = 300V and V2 = 200V. V1 = 200V and V2 = 300V. V1 = 250V and V2 = 250V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is 0.0012 Ohm. 240 Ohm. 0.0024 Ohm. 120 Ohm. 0.0012 Ohm. 240 Ohm. 0.0024 Ohm. 120 Ohm. ANSWER DOWNLOAD EXAMIANS APP
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