Brake horsepower is greater than liquid horsepower by a factor representing what aspect of the pump?

Brake horsepower is greater than liquid horsepower by a factor representing what aspect of the pump?

• A. Capacity.
• B. Efficiency.
• C. Power loss.
• D. Flow rate.

Answer: (B)

The correct answer is related to the concept of efficiency within pump operations. Brake horsepower (BHP) is a measure of the actual power being delivered by the pump to the fluid, while liquid horsepower (LHP) refers to the theoretical power needed to move a fluid at a specific flow rate and head. The difference between these two measurements arises primarily due to the efficiency of the pump. In essence, efficiency calculates how well the pump converts the input energy (BHP) into useful work (LHP). If a pump operates at less than 100% efficiency, the BHP will be greater than the LHP because some of the energy is lost to friction, heat, and other factors during the pumping process. Therefore, the ratio of brake horsepower to liquid horsepower gives an insight into the efficiency of the pump. A higher ratio indicates lower efficiency, while a ratio closer to unity suggests that the pump is operating efficiently with minimal power losses. This relationship is crucial for engineers and technicians to understand as it directly influences the design, selection, and operation of pumping systems.

The correct answer is related to the concept of efficiency within pump operations. Brake horsepower (BHP) is a measure of the actual power being delivered by the pump to the fluid, while liquid horsepower (LHP) refers to the theoretical power needed to move a fluid at a specific flow rate and head.

The difference between these two measurements arises primarily due to the efficiency of the pump. In essence, efficiency calculates how well the pump converts the input energy (BHP) into useful work (LHP). If a pump operates at less than 100% efficiency, the BHP will be greater than the LHP because some of the energy is lost to friction, heat, and other factors during the pumping process.

Therefore, the ratio of brake horsepower to liquid horsepower gives an insight into the efficiency of the pump. A higher ratio indicates lower efficiency, while a ratio closer to unity suggests that the pump is operating efficiently with minimal power losses. This relationship is crucial for engineers and technicians to understand as it directly influences the design, selection, and operation of pumping systems.