What is an advantage of the inclined "U" tube manometer compared to a standard "U" tube manometer?

The inclined "U" tube manometer offers increased accuracy in pressure measurements compared to a standard "U" tube manometer. The design of the inclined manometer features a longer measuring column, which allows for a more pronounced difference in liquid levels for small pressure changes. This means even minimal shifts in pressure can produce noticeable changes in the height of the liquid column along the incline, enabling precise readings. Additionally, the inclination reduces parallax errors and allows the user to read the manometer from an optimal angle, ensuring greater accuracy in the recorded measurements.

While some options might refer to limitations or specific applications of measurement units, they do not demonstrate the inherent advantage of accuracy linked to the inclined design. Consequently, the inclined "U" tube manometer's construction grants it the ability to measure small changes in pressure more effectively than a standard "U" tube manometer.