What are the two main types of aircraft batteries?

• Lead Acid & Lithium Ion

• Lithium Ion & Alkaline

• Alkaline & Ni-Cad

• Ni-Cad & Lead Acid

The two most common sizes of aircraft batteries are 12V and ____

• 82 lbs

• 2.1V

• 24V

• 28V

What is the specific voltage of a single lead acid cell?

• 1.25V

• 2.1V

• 12V

• 24V

What is the electrolyte in a lead acid battery?

• Sulfuric acid

• Sulfuric acid & water

• Sodium bicarbonate

• Boric acid

Will the acid always be strong through the life of the battery?

• Yes

• It will get stronger as the battery loses charge

• It will get weaker as the battery loses charge

• It will get weaker as the battery ages

How do you neutralize sulfuric acid if it spills while you're working?

• Rinse with water

• Lemon juice

• Sodium bicarbonate

• Cat litter

What do we use to test the state of charge of a battery?

• Manometer

• Hydrometer

• Charger-analyzer

• Deep cycler

What is that hydrometer measuring?

• The specific density

• The specific gravity

• The colour of the solution

• The lead in the solution

What about a Ni-Cad. What's its electrolyte?

• Sulfuric acid

• Sodium bicarbonate

• Potassium hydroxide

• Hydrogen peroxide

And it's single cell voltage?

• 1.25V

• 1.5V

• 2.1V

• 2.5V