U.S. regulations require any tankship making a voyage of over 48 hours duration to conduct certain tests not more than 12 hours prior to leaving port. Which of the following must be tested to meet this requirement?

Correct Answer: Option B — means of communication between the bridge and engine room

According to 46 CFR, tankships undertaking voyages exceeding 48 hours must test vital operational systems—including the means of communication between the bridge and engine room—within 12 hours prior to departure to ensure immediate maneuvering readiness.