Engine 2014: Electricity

1. A the battery is fully charged when the indicator floats low in the electrolyte
2. B any water that has been previously added to the cells will  dilute the solution and give a false reading
3. C a hydrometer reading is inaccurate if taken immediately after water is added to the cell
4. D temperature has no effect on hydrometer readings

Tip: press A-D to answer