A constant-voltage generator has minimum efficiency low internal resistance high internal resistance minimum current capacity TRUE ANSWER : ? YOUR ANSWER : ?
When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in active state none of the listed here charged state discharged state TRUE ANSWER : ? YOUR ANSWER : ?
In a lead-acid cell, if the specific gravity of sulphuric acid is 1.8, it will require following ratio of acid to water to get mixture of specific gravity of 1.3 4 parts of acid to 8 parts of water 4 parts of acid to 6 parts of water 4 parts of acid to 4 parts of water 6 parts of acid to 4 parts of water TRUE ANSWER : ? YOUR ANSWER : ?
If a lead-acid cell is discharged below 1.8 V the following will happen. Capacity of cell will reduce Sulphation of plates will occur All of the listed here Internal resistance will increase TRUE ANSWER : ? YOUR ANSWER : ?
Negative plate of an Edison cell is made of copper iron silver oxide lead TRUE ANSWER : ? YOUR ANSWER : ?
Cell short circuit results in low sp. gravity electrolyte abnormal high temperature reduced gassing on charge all of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
Trickle charging of a storage battery helps to prevent sulphation increase its reserve capacity keep it fresh and fully charged maintain proper electrolyte level TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following factors adversely affects the capacity of the leadacid battery ? Specific gravity of electrolyte Temperature of surroundings Rate of discharge All of these TRUE ANSWER : ? YOUR ANSWER : ?
Excessive formation of lead sulphate on the surface of the plates happens because of low level of electrolyte persistent undercharging all of the listed here allowing a battery to stand in discharged condition for a long time TRUE ANSWER : ? YOUR ANSWER : ?