Spanish original · English

Hover or tap underlined Spanish terms to see their translation and exam tip.

Para definir los ejes de los canales se utilizan las marcas:To define the axes of channels, the marks used are:

Show the answer

Correct answer: d) Safe water

Why it is correct

Safe water marks can show the middle of a channel.

IALA World Regions: Region A covers Europe (including Spain), Africa, Oceania and Asia (except Japan, South Korea and the Philippines); when entering from seaward, keep RED (can) marks to PORT and GREEN (cone) marks to STARBOARD. Region B covers the Americas (North, Central and South), Japan, South Korea and the Philippines; lateral colours are reversed (GREEN to port and RED to starboard when entering), while keeping the same shapes (can to port, cone to starboard) and identical cardinal, isolated danger, safe water and special marks.

Why the others are not

  • a) Cardinals show where safe water lies relative to a danger.
  • b) Special marks show particular areas, not axes.
  • c) Lateral marks show the sides of a channel, not its axis.

How to work it out in the exam

  1. Axis or middle of the channel: safe water. Sides: lateral.

Where this question comes from

Regulations

Try it: Buoyage pilotage

Pending instructor review. Machine translation, not reviewed.