Measurement and Instrumentation Induction type single phase energy meters measure electric energy in kW VAR Wh kWh kW VAR Wh kWh 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 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 Reactive power of R phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following meter is most suitable for measuring radio frequency currents? Thermocouple meter. Moving - coil meter. VTVM. Moving - iron meter. Thermocouple meter. Moving - coil meter. VTVM. Moving - iron meter. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A CRO can display Both AC and DC signals Time invariant signals AC signals DC signals Both AC and DC signals Time invariant signals AC signals DC signals ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A spring controlled indicating instrument has a deflection of 90deg for maximum current I. The corresponding deflection for a gravity controlled instrument is 30° 0° 120° 90° 30° 0° 120° 90° ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is 94.6o. 175.4o. 4.6o. 85.4o. 94.6o. 175.4o. 4.6o. 85.4o. ANSWER DOWNLOAD EXAMIANS APP
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