Category: Electrolysis and Storage of Batteries

A. low sp. gravity electrolyte
B. abnormal high temperature
C. reduced gassing on charge
D. all above

A. rectifiers
B. engine generator sets
C. motor generator sets
D. any one of the above methods

A. to allow gases out when the cell is on charge
B. to add water to the cell if needed
C. to check the level of electrolyte
D. to do all above functions

A. 1.8 V
B. 1.9 V
C. 2 V
D. 2.1 V

A. A storage cell has a reversible chemical reaction
B. A lead-acid cell can be recharged
C. A carbon-zinc cell has unlimited shelf life
D. A primary cell has an irreversible chemical reaction

A. Loss of capacity
B. Loss of life
C. Corrosion of the grids of the plate
D. All above

A. goggles or other face shield
B. rubber
C. rubber boots and gloves
D. all above safety devices

A. compactness
B. lower e.m.f.
C. small quantity of electrolyte used
D. higher internal resistance

A. one part H2O, three parts H2SO4
B. two parts H2O, two parts H2SO4
C. three parts H2O, one part H2SO4
D. all H2S04

A. 0.8
B. 0.95
C. 1.1
D. 1.21