STCW Navigation & Watchkeeping Practices 5

Question 1

What does a vessel display to indicate it is 'not under command' under COLREGS?

Accepted Answer

Two all-round red lights in a vertical line and no sidelights when stopped

Answer

Rule 27 requires a vessel not under command to display two all-round red lights vertically; sidelights and sternlight are only shown when making way.

Question 2

When conducting a passage plan, the 'monitoring' phase refers to which activity?

Accepted Answer

Tracking the vessel's actual progress against the planned route during the voyage

Answer

The monitoring phase involves continuously comparing the vessel's actual position and progress against the pre-planned route throughout the voyage.

Question 3

A vessel hears five or more short blasts from another vessel. What does this signal mean?

Accepted Answer

The signal is a danger/doubt signal indicating the other vessel does not understand your intentions

Answer

Rule 34(d) specifies that five or more short rapid blasts is the danger signal, indicating doubt about the other vessel's intentions or actions.

Question 4

Which type of current most significantly affects a vessel's set and drift in coastal navigation?

Accepted Answer

Tidal current

Answer

Tidal currents are the primary predictable current affecting coastal navigation and must be accounted for in passage planning and position monitoring.

Question 5

Under STCW, an OOW may be the sole lookout during the day under which condition?

Accepted Answer

After a full risk assessment concludes it is safe and the master has authorized it

Answer

STCW allows the OOW to be the sole lookout in daylight only after a risk assessment confirms it is safe, with the master's explicit authorization.

(STCW) Standards Certification and Watchkeeping for Seafarers Practice Test

(STCW) Standards Certification and Watchkeeping for Seafarers Practice Test

STCW Navigation & Watchkeeping Practices 5