| Q.82 | Which of the following actions is required once in two years for maintenance of the transformer? | |
| Ans | A. Doing the calibration of OTI and WTI | |
| B. Checking for leakage of oil from any point of a transformer | ||
| C. Checking for colour of silica gel in breather | ||
| D. Reading of MOG (Magnetic Oil Gauge) of main tank |
Correct Ans Provided: A