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What does one prolonged blast plus one short blast signal to River lock attendant mean?
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What does one prolonged blast plus one short blast signal to a river lock attendant in a boat?
Vessel operators can alert the lock attendant of their request to transit through the lock by sounding one prolonged blast followed by one short blast
What sound signal tells a river lock attendant you wish to go through the lock?
One prolonged blast followed by one short blast.
What does one long blast followed by one short blast signal to a river lock attendant?
it means you want to ask to go through the lock
What should you do if you hear one prolonged blast?
Stay out of the way! One prolonged blast is the whistle signal for a ship leaving a berth or in a blind bend in a channel.
What sounds signal alerts others that a vessel is leaving a dock?
one prolonged blast
What sound signal should be used if a boat is leaving dock to alert others?
one prolonged blast
What action should be taken when nearing a bending in narrow channel?
Swim steadily, and watch out for cross currents.
What does one prolonged blast mean?
One prolonged blast means a sound signal of between 4 and 6 seconds. By itself it to notify other users of the presence of a vessel that is manoeuvring. Leaving a dock or if obscured by something for instance.
What is the meaning of a prolonged blast plus two short blasts every two minutes?
When visibility is very limited, such as in heavy fog, boaters must give an audible signal to others in the area. For a sailboat the signal is one prolonged blast plus two short blasts every two minutes.
What sound signal alert others that a vessel is leaving the dock?
one prolonged blast
In A power driven vessel under way gives which sound signal every 2 minutes?
one prolonged blast
What action should be taken when nearing in a narrow channel?
Stay to the starboard edge of the channel and signal one prolonged blast
