Hydrogen evolved during charging produces explosive mixture when it is more than 8 % 5 % 10 % 6 % TRUE ANSWER : ? YOUR ANSWER : ?
Level of electrolyte in a cell should be _____ the level of plates equal to above below none of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has lower sp. gravity V Concentrated H₂SO₄ Dilute H₂SO₄ All of the listed here Water TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is always greater than one just one always less than one none of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
It is noticed that durum charging the anode becomes chocolate brown in colour (PbCfe) and cathode becomes grey metallic lead (Pb) energy is absorbed by the cell all of these there is a rise in voltage TRUE ANSWER : ? YOUR ANSWER : ?
Over charging all of the listed here produces excessive gassing loosens the active material increases the temperature resulting in buckling of plates TRUE ANSWER : ? YOUR ANSWER : ?
Sulphated cells are indicated by the loss of capacity of the cell all of the listed here the decrease of the specific gravity the low voltage of the cell on discharge TRUE ANSWER : ? YOUR ANSWER : ?
Which among the following constitutes the major load for an automobile battery ? Parking lights Self starter Brake light Spark plugs TRUE ANSWER : ? YOUR ANSWER : ?
In order that a hydrometer may float vertically in electrolyte its C.G. should be lowered raised displaced sideways undisturbed TRUE ANSWER : ? YOUR ANSWER : ?
As compared to constant-current system, the constant-voltage system of charging a lead acid cell has the advantage of increasing cell capacity reducing time of charging Both of the listed here avoiding excessive gassing TRUE ANSWER : ? YOUR ANSWER : ?