Engine : Electricity - 1029/1386
|
|---|
| « Previous Question |
| What is a useful instrument for checking 3 phase A.C. motor performance by measuring possible unbalanced currents? |
| A) D'Arsonval iron-vane probe |
| B) hand or battery-operated megger |
| C) clamp-on ammeter |
| D) vibrating-reed frequency meter |
loading answer...
| Comments |
|---|
| There are no comments for this question. |