Seepage tolerance is defined as:

• A. Seepage acceptable in operation with no pooling
• B. Seepage causes pooling
• C. Seepage is never allowed
• D. Seepage acceptable only during maintenance

Answer: (A)

Seepage tolerance is about how much leakage is allowed during normal operation. The idea is that a small amount of seepage can be tolerated if it doesn’t form a pool. When seepage remains as a light, dispersed liquid and never collects into a puddle, it’s within the acceptable limit for operation. If seepage starts to pool, that signals a leak above the allowable level and needs action or repair. The other options imply stricter rules than is typical for day-to-day operation: seepage that causes pooling is not acceptable; seepage being never allowed is overly strict; and seepage being acceptable only during maintenance would not cover regular operation.