A vacuum is initially created in a flash...

Question 1 / 270705eccef9cbacbc34ba4d45811

Question 1 of 270705eccef9cbacbc34ba4d45811

A vacuum is initially created in a flash type distilling plant by __________.

Question 1 of 27070

A vacuum is initially created in a flash type distilling plant by __________.

🔍 Key Concepts

• flash type distilling plant operation sequence at startup • how a vacuum is established and maintained in distillation systems • role of air ejectors / vacuum pumps versus natural condensation effects

💭 Think About

• Think about what must happen before any flashing of feed water can occur in a flash type evaporator. • Which device or process is specifically designed to remove non‑condensable gases (like air) from the shell side of the evaporator? • Consider what actually creates the vacuum versus what merely helps maintain or deepen an existing vacuum during operation.

✅ Before You Answer

• Identify which choice involves dedicated vacuum-creating equipment rather than a by‑product of heating or cooling water. • Ask whether condensation alone can evacuate enough air and non‑condensables to start the plant from atmospheric pressure. • Confirm which option would be used during initial startup before there is any distillate or significant flashing occurring.

Question 1 of 27070

A vacuum is initially created in a flash type distilling plant by __________.

the flashing of the feed water

the condensation of the saltwater feed

air ejectors, eductors, or a separate vacuum pump

condensation of the distillate