| LIST I (Type of Device) | LIST II (Characteristics/ Application) | ||
|---|---|---|---|
| A | GTO | I | Triggering Circuit |
| B | UJT | II | Turn off by negative pulse rate |
| C | TRIAC | III | High Speed Switching |
| D | MOSFET | IV | Bidirectional Switching |

| LIST I (Type of Test) | LIST II Quantities to be measured) | ||
|---|---|---|---|
| A | Open circuit test | I | Copper loss and iron loss |
| B | Short circuit test | II | Total losses |
| C | Sumpner's test | III | Iron test |
| D | Load test | IV | Copper losses |