Four basic systems found on boilers are ______.

The correct answer identifies the four fundamental systems involved in the operation of a boiler: steam, feed water, fuel, and draft.

• The steam system is crucial as it is the primary output of a boiler, where water is converted into steam for various applications, such as heating or power generation. The efficiency and functionality of the steam system are vital for the overall operation of the boiler.

• The feed water system is equally important as it supplies water to the boiler for steam generation. Proper management of feed water quality and quantity ensures that the boiler operates efficiently, prevents scaling or corrosion, and maintains safety standards.

• The fuel system refers to the type of energy source being used, which could be natural gas, oil, coal, or other fuels that power the boiler. Understanding the fuel system is essential for optimizing combustion processes and ensuring that the boiler operates within its design parameters.

• The draft system plays a pivotal role in maintaining the necessary airflow for combustion and controlling the exhaust of flue gases. Adequate draft ensures complete combustion of the fuel, proper heat exchange, and overall efficient boiler operation.

Together, these four systems form the backbone of boiler operations, interacting to produce steam safely and efficiently.