A. prevent local heating
B. prevent short-circuiting
C. reduce path resistance
D. prevent corrosion
Electrolysis and Storage of Batteries
In alkaline cell the electrolyte is_____________?
A. dilute sulphuric acid
B. concentrated sulphuric acid
C. NaOH
D. KOH
Battery charging equipment is generally installed______________?
A. in well ventilated location
B. in clean and dry place
C. as near as practical to the battery being charged
D. in location having all above features
Which of the following factors adversely affects the capacity of the leadacid battery ?
A. Temperature of surroundings
B. Specific gravity of electrolyte
C. Rate of discharge
D. All of the above
The common impurity in the electrolyte of lead-acid battery is_____________?
A. chlorine
B. dust particles
C. lead crystals
D. iron
In a battery cover is placed over the element and sealed to the top of the battery container. This is done____________?
A. to reduce evaporation of water from electrolyte
B. to exclude dirt and foreign matter from the electrolyte
C. to discharge both of the above functions
D. to discharge none of the above functions
A battery of 6 cells will show a drop of _______ volts from fully charged state to fully discharged state
A. 1.0
B. 1.5
C. 2.4
D. 2.9
Hydrogen evolved during charging produces explosive mixture when it is more than___________?
A. 2%
B. 4%
C. 6%
D. 8%
Which of the following has lower specific gravity V__________?
A. Dilute H2S04
B. Concentrated H2SO4
C. Water
D. Any of the above
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
