According to U.S. regulations, which conditions would not disqualify a nonmetallic hose as being suitable for use in transferring oil?

Correct Answer: Option B — A leak in the flange gasket while hydrostatically testing the hose.

Under 33 CFR 156.170, a leak in a flange gasket during a hydrostatic test is a failure of the test itself, not a condition that disqualifies the hose material. The test is designed to identify such failures so they can be corrected before the hose is placed into active service.