OCFRD uses what kind of cascade filling system?

OCFRD uses what kind of cascade filling system?

• A. Two bank system
• B. Three bank system
• C. Four bank system
• D. Five bank system

Answer: (C)

A cascade filling system uses several high‑pressure storage cylinders (banks) to refill SCBA bottles quickly. Each bank is charged to the same high pressure, and air is drawn from the bank with the most air left so filling can continue efficiently as bottles are topped up. Four banks give enough simultaneous capacity to service multiple firefighters without waiting for a single bank to refill, which is why OCFRD uses a four‑bank setup. A two‑bank system would be much slower to fill, and a three‑bank system offers less capacity than four. Five banks are less common for typical departments and aren’t what OCFRD uses in this context.

A cascade filling system uses several high‑pressure storage cylinders (banks) to refill SCBA bottles quickly. Each bank is charged to the same high pressure, and air is drawn from the bank with the most air left so filling can continue efficiently as bottles are topped up. Four banks give enough simultaneous capacity to service multiple firefighters without waiting for a single bank to refill, which is why OCFRD uses a four‑bank setup. A two‑bank system would be much slower to fill, and a three‑bank system offers less capacity than four. Five banks are less common for typical departments and aren’t what OCFRD uses in this context.