Measurement and Instrumentation Which of following are needed both for protection and metering? Power factor meters. Instrument transformer. Energy meter. Wattmeters. Power factor meters. Instrument transformer. Energy meter. Wattmeters. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The best type of meter moment is ______ moment. D'Arsonval Iron- vane Dynamometer None of the listed here D'Arsonval Iron- vane Dynamometer None of the listed here 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 0.2% more. 0.4 more. 0.2% less. 0.4% less. 0.2% more. 0.4 more. 0.2% less. 0.4% less. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which wave has the least form factor? Triangular wave Rectangular wave Sine wave Square wave Triangular wave Rectangular wave Sine wave Square wave 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 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 Reactive power of R phase Power proportional to 3 phase power if the load is balanced ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The core flux in the CT of above question no.6, under the given operating conditions is 450 mWb. 225 mWb. 0. 1000 mWb. 450 mWb. 225 mWb. 0. 1000 mWb. ANSWER DOWNLOAD EXAMIANS APP
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