The centrifugal water pump draws coolant into the center of the impeller and then_____.

The centrifugal water pump draws coolant into the center of the impeller and then_____.

• A. Recycles coolant back into the reservoir
• B. Throws coolant at high velocity into the surround casing
• C. Draws coolant out of the impeller into a bypass line
• D. Uses centrifugal force to vaporize coolant

Answer: (B)

After coolant is drawn into the center of the impeller, the spinning blades accelerate it outward. It is then expelled into the surrounding casing (the volute) at high velocity. The volute collects this fast-moving flow and slows it, converting the velocity into pressure so the coolant can be pushed through the system. This outward, high-velocity discharge is the fundamental action of a centrifugal pump. The other options don’t fit because a centrifugal pump doesn’t recycle coolant back into a reservoir, isn’t designed to send coolant through a bypass line from the impeller, and doesn’t vaporize the coolant during normal operation.

After coolant is drawn into the center of the impeller, the spinning blades accelerate it outward. It is then expelled into the surrounding casing (the volute) at high velocity. The volute collects this fast-moving flow and slows it, converting the velocity into pressure so the coolant can be pushed through the system. This outward, high-velocity discharge is the fundamental action of a centrifugal pump. The other options don’t fit because a centrifugal pump doesn’t recycle coolant back into a reservoir, isn’t designed to send coolant through a bypass line from the impeller, and doesn’t vaporize the coolant during normal operation.