C-11-Q122mediumsingle_mcq
In the household ring main of Figure 11.17, the ground (earth) wire is shown in —
In the household ring main of Figure 11.17, the ground (earth) wire is shown in —
- ared
- bblue
- cgreen
- dblack
In the household ring main of Figure 11.17, the ground (earth) wire is shown in —