Rhode Island Master Pipefitter Practice Exam

The correct choice is the globe valve, which is commonly used closest to a boiler in the boiler feed line due to its advantages in controlling flow. Globe valves are designed to provide precise flow regulation and throttling capabilities. When the valve is partially opened, the disc moves up and down in the seat, allowing for better control over the flow rate and pressure within the system. This is critical in a boiler feed line, where maintaining the correct flow and pressure is essential for safe and efficient operation.

Additionally, globe valves are excellent for applications that require frequent adjustments, making them suitable for locations where fine-tuning of the flow is necessary, such as near a boiler. The design of the globe valve also supports higher pressures and temperatures typically found in boiler systems, further enhancing its effectiveness in this application.