How much will each notch of the Smith coarse adjustment lever change the calibration?

The question pertains to the calibration adjustment made by the Smith coarse adjustment lever in relation to the flow measurement in water and fuel systems. The correct answer indicates that each notch of the adjustment lever changes the calibration by 138.8 cubic inches per 100 gallons.

This value is significant because it allows technicians to understand how fine adjustments can affect the volume being dispensed or measured. The use of such a specific measurement means that adjustments are precise and tailored for accurate calibration during maintenance and testing processes.

Understanding this calibration change is crucial for maintaining the efficiency and consistency of water and fuel systems. It highlights the importance of precision in adjustments, ensuring that systems operate correctly, which is essential in preventing wastage and ensuring proper system performance.

In contrast, other options suggest different cubic inch measurements or gallon capacities that do not reflect the actual adjustment metric for the Smith coarse adjustment lever, which does not align with the recognized standard for calibration in this context.