REVERSE OSMOSIS & BOILER CORROSION

What is the primary mechanism of reverse osmosis?

• A. Filtration
• B. Adsorption
• C. Osmosis
• D. Coagulation

In boiler corrosion, which factor contributes to oxygen corrosion?

• A. High pH
• B. Low pH
• C. Presence of dissolved gases
• D. Elevated temperature

Which substance is commonly used as a membrane in reverse osmosis systems?

• A. Activated Carbon
• B. Cellulose
• C. Polyamide
• D. Silica Gel

What is the primary purpose of a descaling agent in boiler water treatment?

• A. Increase pH
• B. Remove scale deposits
• C. Disinfect water
• D. Reduce temperature

In reverse osmosis, what happens to the solute concentration on the feed side of the membrane?

• A. Increases
• B. Decreases
• C. Remains constant
• D. Varies depending on temperature

What type of corrosion is associated with the formation of localized pitting on boiler surfaces?

• A. General Corrosion
• B. Pitting Corrosion
• C. Galvanic Corrosion
• D. Crevice Corrosion

What is the primary function of the semi-permeable membrane in reverse osmosis?

• A. Allow all solutes to pass through
• B. Allow only water to pass through
• C. Block all solutes
• D. Enhance coagulation

In boiler corrosion, which metal is particularly susceptible to oxygen pitting?

• A. Copper
• B. Aluminum
• C. Cast Iron
• D. Stainless Steel

What is the driving force for water movement in reverse osmosis?

• A. Gravity
• B. Pressure
• C. Temperature
• D. Magnetic field

What is the primary cause of foaming in boiler water?

• A. High pH
• B. Presence of dissolved gases
• C. Low pH
• D. Elevated temperature