Rajkamal Sir (Engineers Platform) 📚📚

5. The constant load current for a 230 V single phase energy metre is 20 A at unity power factor. If the meter disc makes 2300 revolutions for 2 hours the meter constant will be………………….. [SSC JE EE 2022]

4. Creep adjustments in single-phase energy metres are done by……………. [SSC JE EE 2022]

3. The adjustment made with the magnetic shunt in three- phase, two-element energy meter for the rotation of aluminum disc to be zero is…………[SSC JE EE 2022]

2. Errors are introduced in the measurement by wattmeter due___ to between current coil & pressure coil. [SSC JE EE 2022]

1. In a three-phase unbalanced load system, the method used to measure power is………………..[SSC JE EE 2022]

5. In two wattmeter method of measurment of three-phase power of a balanced load, if both the wattmeters indicate the same reading, then the power factor of the load is [SSC JE EE 2010]