The primary consideration in selecting a pump for a dispenser that will be primarily used to fill smaller cylinders is to select a pump with minimal gallon per minute to minimize the risk of ______

• A. Underfilling
• B. Overfilling
• C. Spillage
• D. Vaporization

Answer: (B)

Controlling fill accuracy is the key idea here. Small cylinders have limited space for liquid, so filling them too quickly makes it easy to push past the intended total. A pump with a low gallons-per-minute rate gives you more control time to watch the level, verify the target fill, and stop before you exceed the cylinder’s capacity. That slows the process enough to prevent overfill, which is the main safety and product-loss risk in this scenario. Underfilling isn’t the primary concern when aiming to avoid overfill, and while spillage or vaporization can happen, they’re secondary to the risk of stuffing too much liquid into a small cylinder. So using a pump with minimal GPM helps minimize the risk of overfilling.