The DC heater functions to _________

Question 1 of 292185eccef9cbacbc34ba4d457ae

The DC heater functions to __________.

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Question 1 of 29218

Q

The DC heater functions to __________.

🔍 Key Concepts

• Function of a DC (de-aerating) heater in a marine steam plant • Relationship between feedwater heating, de-aeration (air removal), and feedwater storage • Why dissolved oxygen and gases are dangerous to boilers and piping

💭 Think About

• Think about why we use a de-aerating heater instead of just a plain feedwater tank—what extra job does it do? • In a typical steam plant cycle, what happens to the condensate after it leaves the condenser and before it reaches the boiler? What functions are combined in that piece of equipment? • Consider whether the DC heater’s design (spray trays, vent, and shell) is meant for just one purpose or to perform several tasks together.

✅ Before You Answer

• Verify whether the primary purpose is to raise feedwater temperature, remove dissolved gases, or act mainly as a storage drum. • Check if the DC heater is also referred to as a de-aerating feed tank in your study materials—what functions are listed there? • Confirm whether the exam references the DC heater as combining heating, de-aeration, and feedwater storage in a single unit.