Inner page

Introduction to Batteries


Quiz Questions

1. The term voltaic cell is defined as a combination of materials used to convert chemical energy into electrical energy. A voltaic or chemical cell consists of two electrodes made of different types of metals or metallic compounds placed in an electrolyte solution.
True
False
2.

An ___________ is a metallic compound, or metal, which has an abundance of electrons or an abundance of positive charges.
Electrode
Electrolyte
3. Specific gravity is measured with a hydrometer. A simple hydrometer consists of a glass float inside a glass tube. The hydrometer float is weighted at one end and sealed at both ends. A scale calibrated in specific gravity is positioned lengthwise along the body of the float.
True
False
4. In a lead-acid battery, two types of lead are acted upon electro-chemically by an electrolytic solution of diluted sulfuric acid (H2SO4). The positive plate consists of lead peroxide (PbO2), and the negative plate is sponge lead (Pb).
True
False
5. When a lead-acid battery is discharged, electrolyte and the active material on the plates of the battery are consumed to produce water and lead sulphate.
True
False
6.

When cells are connected in____________, all the positive terminals are connected together, and all the negative terminals are connected together. The total voltage output of a battery when connected in this way is the same as that of a single cell.
Series
Parallel
7. The shelf life of a battery is the time which a battery may be stored and not lose more than 10 percent of its original capacity.
True
False
8. The carbon-zinc cell has the advantage of an extended life over that of an alkaline cell of the same size.
True
False
9.

The ______________ has the advantage of being a dry cell that is a true storage battery with a reversible chemical reaction.
Nickel-Cadmium battery
Edison cell
10. Short circuits cause a great reduction in battery capacity.
True
False