🔍 Key Concepts

• Safe boiler operation during watch relief • Normal readings for boiler water level, fuel pressure, and steam demand • Immediate hazards if water level is too low or too high

💭 Think About

• Ask yourself: what is the single most critical parameter, along with fuel pressure, that must be within limits to prevent serious boiler damage? • Which of these choices, if not checked right away, could quickly lead to a dangerous condition like overheating, tube failure, or boiler explosion? • Among the options, which one is routinely watched constantly from the firing platform during normal operations?

✅ Before You Answer

• Identify which item is directly related to preventing boiler damage in the next few minutes, not hours. • Decide which readings are primary boiler controls versus secondary performance indicators. • Think about standard watchstanding practice: what two readings are almost always checked together when taking over a boiler watch?