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

The primary advantage of using an inclined "U" tube manometer is its increased accuracy. The design of an inclined manometer allows for a longer column of liquid to be utilized over the same height difference that a vertical manometer would measure. This means even small changes in pressure can result in a more significant movement of the liquid along the inclined tube, making it easier to observe and read minor differences in pressure. This enhanced sensitivity is particularly useful in applications where precise pressure measurement is essential.

The inclined design leads to a more gradual rise of the liquid column, enabling finer readings compared to a standard vertical U-tube manometer. Therefore, users can determine pressure differences with higher precision, making inclined U-tube manometers particularly valuable in various industrial and scientific applications.