🔍 Key Concepts

• Function of suction strainers in a boiler fuel oil system • Temperature/viscosity of fuel oil at different points in the system • Typical naming convention for strainers located on the suction side of fuel oil pumps

💭 Think About

• Think about whether the fuel oil is normally heated or unheated at the point where it enters the suction strainer. • Consider what condition (temperature and cleanliness) the fuel needs to be in before it reaches the burners or atomizers. • Match each option’s descriptive word (cold, hot, fine, magnetic) to the most logical place in a fuel oil system.

✅ Before You Answer

• Identify where in the fuel oil system suction strainers are installed (before or after heaters?). • Decide whether fuel oil at the suction point is normally heated or unheated. • Consider which type of strainer (fine vs. coarse, temperature-related vs. magnetic) is most appropriate as the first line of protection for pumps.