On overcharging a battery It will raise the specific gravity of the electrolyte None of these It will increase the capacity of the battery It will bring about chemical change in active materials TRUE ANSWER : ? YOUR ANSWER : ?
Under normal charging rate, the charging current should be 30% of capacity 20% of capacity 10% of capacity 40% of capacity TRUE ANSWER : ? YOUR ANSWER : ?
Ampere hour capacity of an industrial battery is based on ____ hours discharge rate. 10 24 8 12 TRUE ANSWER : ? YOUR ANSWER : ?
All the electrical connections between the battery and vehicle should be by flexible cables thin copper wires thin aluminium wires rigid cables TRUE ANSWER : ? YOUR ANSWER : ?
Weston standard cell at 20°C has voltage of ____ volts. 0.8 1.2 1.0187 1.5 TRUE ANSWER : ? YOUR ANSWER : ?
_______ of electrolyte indicates the state of charge of the battery colour viscosity mass specific gravity TRUE ANSWER : ? YOUR ANSWER : ?
Excessive charging a battery tends to to corrode the positive plates into lead peroxide thereby weakening them physically increase the internal resistance of the battery bring about all above changes produce gassing TRUE ANSWER : ? YOUR ANSWER : ?
The common impurity in the electrolyte of lead-acid battery is iron lead crystals dust particles chlorine TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following primary cells has the highest voltage ? Manganese-alkaline Mercury Carbon-zinc Lithium TRUE ANSWER : ? YOUR ANSWER : ?
The watt-hour efficiency of a lead-acid cell varies between 25 to 35% 40 to 60% 70 to 80% 90 to 95% TRUE ANSWER : ? YOUR ANSWER : ?