Final answer:
The advantage of orifice plates over a flow nozzle is that they require fewer sections of straight pipe.
Step-by-step explanation:
Orifice plates are typically sandwiched between two flanges of a pipe joint, allowing for easy installation and removal: The point where the fluid flow profile constricts to a minimum cross-sectional area after flowing through the orifice is called the vena-contracta, and it is the area of minimum fluid pressure.
The advantage of orifice plates over a flow nozzle is that they require fewer sections of straight pipe. Unlike a flow nozzle, orifice plates can be installed with minimal straight pipe sections, making them more flexible in terms of installation. This is because orifice plates have a smaller pressure drop compared to flow nozzles.