1. What is a Boiler?
Answer: A closed vessel in which water or another liquid is heated.
Explanation: Boilers are pressure vessels designed to transfer heat to a fluid, typically
generating steam or hot water for heating, power generation, or industrial processes.
2. What distinguishes a Power Boiler from a Heating Boiler?
Answer:
• Power Boiler: Generates steam/vapor ≥15 psig.
• Heating Boiler: Operates at <15 psig (steam) or ≤250°F (hot water).
Explanation: Power boilers are for high-pressure applications (e.g., turbines),
while heating boilers are for low-pressure space heating.
3. What is MAWP?
Answer: Maximum Allowable Working Pressure—the highest pressure a boiler/vessel
can safely operate under.
Explanation: MAWP is determined by design, material, and inspection standards (e.g.,
ASME). Exceeding it risks failure.