Excessive water flow beyond the design...

🔍 Key Concepts

• Pressure drop and how it relates to flow rate through a heater or any piping system • What happens to friction losses when flow rate increases past the design point • Typical symptoms of overloading a feedwater heater vs. symptoms of other faults (like gas in the system or wrong steam conditions)

💭 Think About

• Think about how pressure behaves when a fluid moves faster through a fixed passage. Does the pressure loss from inlet to outlet usually go up or down? • Which of the listed symptoms would be a direct result of increased flow through the tubes, and which ones are more related to steam conditions or venting issues? • If the flow gets too high, what happens to the velocity and turbulence in the tubes, and how would that show up on pressure gauges at the inlet and outlet?

✅ Before You Answer

• Compare the choices and decide which one is a direct indicator of changed flow rate through the heater, not a secondary or unrelated effect • Mentally apply the idea: higher flow → higher velocity → what happens to frictional pressure loss between inlet and outlet? • Eliminate any options that mainly describe steam-side conditions or venting problems, rather than water-side flow indication

Excessive water flow beyond the design limits of a feed water heater, will be indicated by a/an __________.

increase in the pressure drop between the water inlet and outlet

decrease in the pressure drop between the water inlet and outlet

excessive gas liberation from the waterside vents

high steam temperature at the heater outlet

🔍 Key Concepts

💭 Think About

✅ Before You Answer