Class 5 Boiler Practice Exam

Are all automatically fired boilers of 12,500,000 btu or less subjected to ASME CSD-1?

1. Yes, they are

2. No, only manually fired

3. Only if they are over 20k btu

4. Depends on the manufacturer

The correct answer is: Yes, they are

The correct answer is that all automatically fired boilers of 12,500,000 BTU or less are indeed subjected to ASME CSD-1. This standard is designed to ensure the safety and reliability of automatically fired boilers, which are commonly used in both commercial and industrial applications. ASME CSD-1 (Control Systems for Automatic Steam and Hot Water Boilers) establishes guidelines for the safe operation of these systems. It requires specific control features and safety devices to minimize the risk of accidents related to fuel, pressure, and temperature. Since a significant portion of boiler incidents can be related to control system failures, adherence to this standard helps mitigate risks associated with automatic firing mechanisms. On the other hand, the other choices do not accurately reflect the standards set by ASME CSD-1. The reference to manually fired boilers is not relevant, as this standard specifically targets automatically fired systems. The mention of a threshold of 20,000 BTU misrepresents the guideline, because it is indeed applicable to all automatically fired systems below the 12,500,000 BTU mark. Lastly, compliance does not vary depending on the manufacturer; it is a regulatory compliance requirement that applies universally to qualifying equipment regardless of the maker.