How does the inclined manometer compare to the U manometer in terms of accuracy?

The inclined manometer provides a more accurate measurement of pressure compared to a U manometer due to its design. The key factor is that the inclined manometer has a longer fluid column in contact with the scale over a given pressure change. This design amplifies small changes in liquid height, which allows for finer resolution in readings.

When pressure is applied, even a slight change in the fluid level can be detected, as the inclination of the tube means that the height change is distributed over a longer length. This results in a larger scale reading for small pressure differences, improving the precision of the measurement. In contrast, the U manometer, which features vertical columns, may struggle to provide the same level of detail for minor pressure variations since the changes in height can be more challenging to discern.

Ultimately, the inclination of the manometer correlates directly with improved accuracy, making it the preferred choice when precise pressure measurement is necessary.