Types of Hot Plants are?

• A. Batch plants and drum plants.
• B. Hot mix asphalt and cold mix
• C. RAP entry point and aggregate cold feed
• D. Pug mill and counter flow dryer

Answer: (A)

Two main kinds of hot asphalt plants are batch plants and drum plants. Batch plants heat and screen the aggregate, then mix a measured batch of aggregate with asphalt cement, producing discrete batches with tight control over proportions. Drum plants operate in a continuous process where the aggregate is dried and heated in a rotating drum and asphalt cement is added into the flow, yielding a steady stream of hot-mix with typically higher production and simpler setup. The other options mix terms that describe the product (hot mix vs cold mix) or relate to plant components or feed points (RAP entry point, aggregate cold feed, pug mill, counter flow dryer) rather than defining the main plant types.