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Electrolysis and Storage of Batteries

Excessive formation of lead sulphate on the surface of the plates happens because of___________?

August 11, 2021December 14, 2018 by admin
Excessive formation of lead sulphate on the surface of the plates happens because of___________?

A. allowing a battery to stand in discharged condition for a long time
B. topg up with electrolyte
C. persistent undercharging
D. low level of electrolyte
E. all above

Categories Electrolysis and Storage of Batteries

The substances which combine together to store electrical energy during the charge are called ________ materials

August 11, 2021December 14, 2018 by admin
The substances which combine together to store electrical energy during the charge are called ________ materials

A. active
B. passive
C. inert
D. dielectric

Categories Electrolysis and Storage of Batteries

Undercharging___________?

August 11, 2021December 14, 2018 by admin
Undercharging___________?

A. reduces specific gravity of the electrolyte
B. increases specific gravity of the electrolyte
C. produces excessive gassing
D. increases the temperature

Categories Electrolysis and Storage of Batteries

In ________ system the charging current is intermittently controlled at either a maximum or minimum value

August 11, 2021December 14, 2018 by admin
In ________ system the charging current is intermittently controlled at either a maximum or minimum value

A. two rate charge control
B. trickle charge
C. floating charge
D. an equalizing charge

Categories Electrolysis and Storage of Batteries

Internal short circuits are caused by___________?

August 11, 2021December 14, 2018 by admin
Internal short circuits are caused by___________?

A. breakdown of one or more separators
B. excess accumulation of sediment at the bottom of the cell
C. both (A) and (B)
D. none of the above

Categories Electrolysis and Storage of Batteries

The capacity of a lead-acid cell is measured in_____________?

August 11, 2021December 14, 2018 by admin
The capacity of a lead-acid cell is measured in_____________?

A. amperes
B. ampere-hours
C. watts
D. watt-hours

Categories Electrolysis and Storage of Batteries

Lead-acid cell has a life of nearly charges and discharges______________?

August 11, 2021December 14, 2018 by admin
Lead-acid cell has a life of nearly charges and discharges______________?

A. 500
B. 700
C. 1000
D. 1250

Categories Electrolysis and Storage of Batteries

Over charging______________?

August 11, 2021December 14, 2018 by admin
Over charging______________?

A. produces excessive gassing
B. loosens the active material
C. increases the temperature resulting in buckling of plates
D. all above

Categories Electrolysis and Storage of Batteries

The open circuit voltage of any storage cell depends wholly upon___________?

August 11, 2021December 14, 2018 by admin
The open circuit voltage of any storage cell depends wholly upon___________?

A. its chemical constituents
B. on the strength of its electrolyte
C. its temperature
D. all above

Categories Electrolysis and Storage of Batteries

Electrolyte used in a lead-acid cell is__________?

August 11, 2021December 14, 2018 by admin
Electrolyte used in a lead-acid cell is__________?

A. NaOH
B. onlyH2S04
C. only water
D. dilute H2SO4

Categories Electrolysis and Storage of Batteries
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