Let's solve each statement step-by-step and match it with either **Axial flow fan** or **Centrifugal (radial flow) fan**. --- ### 1) The type of fan that moves gas or air in a path parallel to the fan rotor - **Axial flow fans** move air along the axis of the fan (parallel to the rotor). - **Answer:** Axial flow fan --- ### 2) The type of fan that moves gas or air in a path perpendicular to the fan rotor - **Centrifugal fans** move air at a right angle (perpendicular) to the axis of rotation. - **Answer:** Centrifugal (radial flow) fan --- ### 3) The type of fan that is most practical in high flow, low pressure rise applications - **Axial flow fans** are best for high flow, low pressure. - **Answer:** Axial flow fan --- ### 4) The type of fan that is most commonly used in fin fan and cooling tower applications - **Axial flow fans** are widely used in cooling towers and fin fans. - **Answer:** Axial flow fan --- ### 5) The type of fan that is most efficient in high head applications - **Centrifugal fans** are more efficient when high pressure (head) is needed. - **Answer:** Centrifugal (radial flow) fan --- ### 6) The type of fan that has the disadvantage of requiring high rotational speeds to generate pressure - **Axial flow fans** generally need higher speeds to generate significant pressure. - **Answer:** Axial flow fan --- ## **Final Answers Table** | Statement | Axial flow fan | Centrifugal (radial flow) fan | |---------------------------------------------------------------------------|:--------------:|:-----------------------------:| | 1) Moves air parallel to the fan rotor | ● | | | 2) Moves air perpendicular to the fan rotor | | ● | | 3) Most practical in high flow, low pressure rise applications | ● | | | 4) Most commonly used in fin fan and cooling tower applications | ● | | | 5) Most efficient in high head applications | | ● | | 6) Disadvantage: requires high rotational speeds to generate pressure | ● | | Let me know if you need further clarification!