Question

A gasoline powered clear water pump referred to as a 3-inch pump. What pump attribute is the "3 inch" description refer to?

A) The pump impeller measures 3 inches in diameter
B) The inlet and outlet ports are 3 inches inside diameter
C) The pump volute is 3 inches in circumference
D) None of the above

Answer 1

In the context of a 3-inch water pump, the '3-inch' description typically refers to the inside diameter of the pump's inlet and outlet ports, not the impeller diameter or the volute circumference.

Step-by-step explanation:

The description "3-inch" in reference to a gasoline powered clear water pump usually refers to the size of the inlet and outlet ports. It means that these ports have an inside diameter of 3 inches, facilitating the connection of hoses or pipes of the same diameter for water intake and discharge.

This sizing directly affects the flow rate capacity of the pump but it does not refer to the impeller diameter or the volute circumference.