FCC Element 6 Radiotelegraph License Practice Test 2026 – Complete Exam Preparation

The type of energy storage cell constructed with iron plates is the Edison-type battery. This technology utilizes iron for its positive plate and often nickel for its negative plate. The Edison battery is known for its durability and long lifespan, making it suitable for certain applications, especially where deep cycling is involved.

This type of battery can perform well under conditions where other types might fail, such as in high-discharge applications or in situations where the battery undergoes many cycles of charging and discharging.

In contrast, other battery types mentioned, such as nickel-cadmium, lead-acid, and alkaline batteries, utilize different materials and chemistries for their construction. Nickel-cadmium cells incorporate nickel and cadmium, lead-acid cells are based on lead and lead dioxide, and alkaline batteries typically use zinc and manganese dioxide. Thus, the correct identification of the Edison-type battery as utilizing iron plates delineates it from these other types.