Which of the following is a type of overhead transformer mentioned in the material?

• A. Conventional
• B. Submersible
• C. Isolation
• D. Distribution

Answer: (A)

Overhead transformers come in a standard, pole-mounted design that is used for distributing electricity at lower voltages—the conventional type describes this familiar, standard setup. It’s the form you typically see along streets on utility poles, open-air and not sealed for submersion. The other options refer to different contexts or functions: submersible transformers are meant for submerged/underground use, isolation transformers provide electrical isolation rather than being a typical distribution transformer, and distribution describes the service level rather than a distinct overhead-design type. So the conventional type best matches the notion of an overhead transformer mentioned in the material.