Cruise Ship Cruise Ship Navigation and Seamanship 2

Question 1

What is the term for the minimum safe water depth under a vessel's keel while navigating?

Accepted Answer

Under-keel clearance

Answer

Under-keel clearance (UKC) is the vertical distance between the lowest point of a ship's hull and the seabed, and maintaining a minimum UKC is critical for safe navigation.

Question 2

When a cruise ship enters a port that requires a pilot, who retains overall command of the vessel?

Accepted Answer

The master (captain)

Answer

Even when a compulsory pilot is embarked, the ship's master retains full command and legal responsibility for the vessel at all times.

Question 3

What does 'squat effect' refer to during cruise ship navigation?

Accepted Answer

The reduction in UKC caused by increased water speed under the hull

Answer

Squat effect occurs when a vessel traveling at speed in shallow water experiences a drop in its bow or stern due to reduced pressure beneath the hull.

Question 4

Which publication provides official navigational warnings for the US coastal waters that a cruise ship bridge team must monitor?

Accepted Answer

NAVTEX broadcasts

Answer

NAVTEX is an international automated medium frequency broadcast service that provides navigational warnings, meteorological forecasts, and search and rescue notices.

Question 5

What is the standard watch system used by navigating officers on most ocean-going cruise ships?

Accepted Answer

4 hours on / 4 hours off (4-on-4-off)

Answer

The 4-on-4-off watch system, where officers stand four-hour watches followed by four hours off duty, is the traditional and most common schedule on deep-sea vessels.

Cruise Ship Practice Test

Cruise Ship Practice Test

Cruise Ship Cruise Ship Navigation and Seamanship 2