OUPV sound and light signals Exam
Prep 2025 Questions and Answers
whistle means - ✔✔any sound signaling appliance capable of producing the prescribed
blasts andcomplies with specs in annex III
A "short blast" on the whistle has a duration of - ✔✔1 second
Prolonged blast duration - ✔✔4 to 6 seconds
Vessel of 12 meters or more shall be equip with - ✔✔a whistle
on a vessel of 20 meters or more - ✔✔bell and a whistle
vessel of 100 meters of more - ✔✔bell, whistle, gong, tone and sound that can't be
confused with the bell
vessel less than 12 meters - ✔✔not obliged to carry sound signaling devices, but should
be provided with other means of making sound
one short blast or flash - ✔✔I am altering my course to starboard
two short blasts or flashes - ✔✔I am altering my course to port
three short blasts of flashes - ✔✔I am operating astern propulsion/ I am backing up
duration of flashes and interval - ✔✔1 second and 1 second.interval between successive
signals shall be not less than 10 seconds
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 1
Prep 2025 Questions and Answers
whistle means - ✔✔any sound signaling appliance capable of producing the prescribed
blasts andcomplies with specs in annex III
A "short blast" on the whistle has a duration of - ✔✔1 second
Prolonged blast duration - ✔✔4 to 6 seconds
Vessel of 12 meters or more shall be equip with - ✔✔a whistle
on a vessel of 20 meters or more - ✔✔bell and a whistle
vessel of 100 meters of more - ✔✔bell, whistle, gong, tone and sound that can't be
confused with the bell
vessel less than 12 meters - ✔✔not obliged to carry sound signaling devices, but should
be provided with other means of making sound
one short blast or flash - ✔✔I am altering my course to starboard
two short blasts or flashes - ✔✔I am altering my course to port
three short blasts of flashes - ✔✔I am operating astern propulsion/ I am backing up
duration of flashes and interval - ✔✔1 second and 1 second.interval between successive
signals shall be not less than 10 seconds
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 1