Battery Charging and Safety Quiz

The maximum allowable battery temperature during charging is:

• 30°C

• 45°C

• 52°C

• 60°C

What should be applied to battery terminals after charging to prevent corrosion?

• Water

• Acid

• Vaseline

• Glue

What gas is released at the negative plate during charging?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

Which charging method keeps current constant during the charge?

• Constant voltage charging

• Manual charging

• Constant current charging

• Float charging

What happens during the discharge of a lead-acid battery?

• Water turns into acid

• Lead sulphate is turned into lead and lead dioxide

• Lead and lead dioxide react with acid to form lead sulphate and water

• Hydrogen is used to produce electricity

Which of the following affects battery capacity?

• Plate size only

• Ventilation only

• Temperature, discharge rate, age of cell, and amount of active material

• Shape of the battery

Why is high temperature bad for batteries?

• It slows down reactions

• It speeds up reactions, causing faster aging

• It cools the electrolyte

• It stops charging

Which is a correct safety precaution when working around batteries?

• Open flame nearby is okay

• Do not wear gloves

• Ensure good ventilation

• Pour acid into metal buckets

Which statement best describes constant current charging?

• Voltage is fixed, current drops slowly

• Current is fixed, voltage increases

• Both voltage and current stay the same

• Battery is charged with pulses

Which statement best describes constant voltage charging?

• Voltage is fixed, current drops over time

• Current stays high

• Voltage drops slowly

• Current and voltage are both fixed