DWO Navigation and Safety 3

Question 1

What action should the OOW take first upon detecting a vessel on a constant bearing with decreasing range?

Accepted Answer

Assess the situation, plot the target, and determine CPA and TCPA

Answer

The first step is always to assess the situation by plotting the target to determine its CPA and TCPA before taking any avoiding action.

Question 2

Under the Inland Navigation Rules, two power-driven vessels meeting head-on in a river must:

Accepted Answer

Pass port-to-port, each altering course to starboard

Answer

Inland Rule 14 requires head-on vessels to pass port-to-port by each altering course to starboard, the same as COLREGS.

Question 3

A voyage plan must include which of the following elements according to IMO Resolution A.893(21)?

Accepted Answer

Appraisal, planning, execution, and monitoring

Answer

IMO A.893(21) defines voyage planning as four sequential stages: appraisal, planning, execution, and monitoring.

Question 4

When a vessel is listed as 'not under command,' which lights must it exhibit at night?

Accepted Answer

Two all-round red lights in a vertical line, and if making way, sidelights and sternlight

Answer

A NUC vessel shows two all-round red lights vertically and, if making way through the water, also shows sidelights and a sternlight.

Question 5

What is the primary purpose of the International Safety Management (ISM) Code?

Accepted Answer

To provide an international standard for safe management and operation of ships and pollution prevention

Answer

The ISM Code establishes an international standard for the safe management and operation of ships and for pollution prevention.

(DWO) Deck Watch Officer Practice Test