engineering recuitment HPCL Engineer Mock Test 2024 Electrical and Electronics Measurements Measurement of R/L/C Using Bridge Circuits Measurement of Resistance
Which of the following statement are TRUE with respect to megger?
1. Megger is a portable instrument to measure high insulation resistance.
2. The speed of megger is kept around at 160 rpm.
3. The electrical power for the operation of megger is provided by a permanent magnet DC generator.
4. Generally, megger is the combination of DC generator and shunt type ohmmeter.
1
1 and 3 only
2
1, 2 and 3 only
3
1,3 and 4 only
4
1, 2, 3 and 4