CHAPTER 5 BOATERS STUDY GUIDE DETAILED #5
1 blast means - correct answer pass on port side
2 blasts - correct answer passing on starboard
3 short blasts - correct answer engine is in reserve
5 short blasts - correct answer danger or do not understand approaching boats
intentions
1 prolonged blast (4-6) seconds - correct answer entering or exiting blind turn nearing
an obstructed are
Leaving a dock or berth
1 prolonged blast every 2 minutes - correct answer power driven vessel operating in low
or restricted visibility
1 prolonged blast + 2 short blasts every 2 minutes - correct answer sailing vessel
operating in low or restricted visibility.
Green markers odd numbers lateral - correct answer keep this marker on your left port
side when proceeding in the upstream returning from sea direction odd numbers will be
displayed and will increases as you head upstream
Red markers lateral marker - correct answer keep this marker on your right (starboard)
side when proceeding in the upstream (returning from sea) direction. Even numbers will
be displayed and will increase as you head upstream.
Red and green lateral marker - correct answer you may pass this marker on either side
when proceeding in the upstream direction, but the main or preferred channel is
indicated by the color of the topmost band. For example, the illustrated marker above
indicates the preferred channel is to the right, so you would keep the marker on your left
(port) side when passing.
Nun buoys - correct answer cone-shaped markers that are always red in color, with
even numbers. Keep this marker on your right (starboard) side when proceeding in the
upstream returning from sea) direction.
Can buoys - correct answer cylindrical-shaped markers that are always green in color,
with odd numbers. Keep this marker on your left (port) side when proceeding in the
upstream (returning from sea) direction.
Daymarks - correct answer green squares with odd numbers are the equivalent of can
buoys; keep this marker on your left side. Red triangles with even numbers are the
1 blast means - correct answer pass on port side
2 blasts - correct answer passing on starboard
3 short blasts - correct answer engine is in reserve
5 short blasts - correct answer danger or do not understand approaching boats
intentions
1 prolonged blast (4-6) seconds - correct answer entering or exiting blind turn nearing
an obstructed are
Leaving a dock or berth
1 prolonged blast every 2 minutes - correct answer power driven vessel operating in low
or restricted visibility
1 prolonged blast + 2 short blasts every 2 minutes - correct answer sailing vessel
operating in low or restricted visibility.
Green markers odd numbers lateral - correct answer keep this marker on your left port
side when proceeding in the upstream returning from sea direction odd numbers will be
displayed and will increases as you head upstream
Red markers lateral marker - correct answer keep this marker on your right (starboard)
side when proceeding in the upstream (returning from sea) direction. Even numbers will
be displayed and will increase as you head upstream.
Red and green lateral marker - correct answer you may pass this marker on either side
when proceeding in the upstream direction, but the main or preferred channel is
indicated by the color of the topmost band. For example, the illustrated marker above
indicates the preferred channel is to the right, so you would keep the marker on your left
(port) side when passing.
Nun buoys - correct answer cone-shaped markers that are always red in color, with
even numbers. Keep this marker on your right (starboard) side when proceeding in the
upstream returning from sea) direction.
Can buoys - correct answer cylindrical-shaped markers that are always green in color,
with odd numbers. Keep this marker on your left (port) side when proceeding in the
upstream (returning from sea) direction.
Daymarks - correct answer green squares with odd numbers are the equivalent of can
buoys; keep this marker on your left side. Red triangles with even numbers are the
