Deck : General Navigation - 632/2138
|
|---|
| « Previous Question |
| The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval? |
| A) They are not subject to permanent magnetism; no check is necessary. |
| B) Every five years |
| C) Semiannually |
| D) Annually |
loading answer...
| Comments |
|---|
| There are no comments for this question. |