Hydrogen evolved during charging produces explosive mixture when it is more than___________?

Related Mcqs:

The active materials on the positive and negative plates of a fully charged lead-acid battery are_______?

A. lead and lead peroxide B. lead sulphate and lead C. lead peroxide and lead D. none of the above...

It is noticed that during discharging the following does not happen___________?

A. both anode and cathode become PbS04 B. specific gravity of H2SO4 decreases C. voltage of the cell decreases D. the cell absorbs energy...

In a lead-acid cell, lead is called as____________?

A. positive active material B. negative active material C. passive material D. none of the above...

Local action in a battery is indicated by____________?

A. excessive gassing under load conditions B. excessive drop in the specific gravity of electrolyte even when the cell is on open circuit C. both A. and (b) D. none of the above...

Petroleum jelly is applied to the electrical connections to the lead-acid battery___________?

A. prevent local heating B. prevent short-circuiting C. reduce path resistance D. prevent corrosion...