Electrolysis and Storage Batteries Petroleum jelly is applied to the electrical connections to the lead-acid battery prevent local heating prevent corrosion prevent short-circuiting reduce path resistance prevent local heating prevent corrosion prevent short-circuiting reduce path resistance ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Local action in a battery is indicated by excessive gassing under load conditions none of the listed here both of the listed here excessive drop in the specific gravity of electrolyte even when the cell is on open circuit excessive gassing under load conditions none of the listed here both of the listed here excessive drop in the specific gravity of electrolyte even when the cell is on open circuit ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Which of the following primary cells has the lowest voltage ? Lithium Mercury Carbon-zinc Zinc-chloride Lithium Mercury Carbon-zinc Zinc-chloride ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries During the charging of a lead-acid cell specific gravity of H₂SO₄ decreases its voltage increases it gives out energy its cathode becomes dark chocolate brown in colour specific gravity of H₂SO₄ decreases its voltage increases it gives out energy its cathode becomes dark chocolate brown in colour ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries In order that a hydrometer may float vertically in electrolyte its C.G. should be undisturbed displaced sideways lowered raised undisturbed displaced sideways lowered raised ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The ampere-hour efficiency of a leadacid cell is normally between 70 to 75% 90 to 95% 80 to 85% 20 to 35% 70 to 75% 90 to 95% 80 to 85% 20 to 35% ANSWER DOWNLOAD EXAMIANS APP
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