When different types of consumers are charged at different uniform per unit rates, it is called as ____

• A. block rate tariff
• B. flat rate tariff
• C. two-part tariff
• D. maximum demand tariff

Answer: (B)

When different types of consumers are charged at different uniform per unit rates, it is said to be Flat Rate Tariff.
In this type, the consumers are grouped into different classes.
Each class is charged at different uniform rate.