Measurement and Instrumentation An ammeter of range 0-25 A has a guaranteed accuracy of 1% of full-scale reading. The current measured by the ammeter is 5 A. The limiting error in the reading is 5% 3% 6% 4% 5% 3% 6% 4% 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 of Y phase Reactive power of R phase Active power in R phase Power proportional to 3 phase power if the load is balanced Active power of Y phase Reactive power of R phase Active power in R phase Power proportional to 3 phase power if the load is balanced ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 1 mA meter is to be converted to 1 A ammeter. The meter resistance is 100 Ω. The value of shunt resistance 0.001 Ω. 0.1001 Ω. 100 Ω. 1000 Ω. 0.001 Ω. 0.1001 Ω. 100 Ω. 1000 Ω. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be 0.4 more. 0.2% more. 0.4% less. 0.2% less. 0.4 more. 0.2% more. 0.4% less. 0.2% less. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltmeter using thermocouple measures Peak to peak value. Average value. Peak value. rms value. Peak to peak value. Average value. Peak value. rms value. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The range of a moving iron ac ammeter is extended by None of the listed here A multiplier Changing number of turns of operating coil A shunt None of the listed here A multiplier Changing number of turns of operating coil A shunt ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS