When the lead-acid cell is fully charged, the electrolyte assumes _____ appearance bright reddish dull milky TRUE ANSWER : ? YOUR ANSWER : ?
Extent of corrosion in the underground metal work depends upon type of metals all of these type of soil chemicals amount of moisture TRUE ANSWER : ? YOUR ANSWER : ?
Life of the Edison cell is at least ten years eight years seven years five years TRUE ANSWER : ? YOUR ANSWER : ?
On the average the ampere-hour efficiency of an Edison cell is about 0.8 0.4 0.7 0.6 TRUE ANSWER : ? YOUR ANSWER : ?
Under normal charging rate, the charging current should be 20% of capacity 40% of capacity 10% of capacity 30% of capacity TRUE ANSWER : ? YOUR ANSWER : ?
The current flow through electrolyte is due to the movement of ions holes None of these electrons TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following primary cells has the highest voltage ? Carbon-zinc Manganese-alkaline Mercury Lithium TRUE ANSWER : ? YOUR ANSWER : ?
Sulphated cells are indicated by the loss of capacity of the cell the low voltage of the cell on discharge all of the listed here the decrease of the specific gravity TRUE ANSWER : ? YOUR ANSWER : ?
Hydrogen evolved during charging produces explosive mixture when it is more than 6 % 5 % 8 % 10 % TRUE ANSWER : ? YOUR ANSWER : ?
The average charging voltage for alkali cell is about 1.7 V 1.2 V 1 V 2.1 V TRUE ANSWER : ? YOUR ANSWER : ?