Skip to content
MaritimeTest
Log in

TOTS 1A-Navigating in Restricted Visibility

CBT 18 questions

First 5 of 18 questions — with answers

The correct answer is marked. Unlock the rest to study the whole test, online or offline.

  1. Question 1

    At what intervals should a power-driven vessel under way and making way through the water, sound one prolonged blast in or near an area of restricted visibility?
    • At intervals of not less than five minutes.
    • At intervals of not more than two minutes.
    • At intervals of not less than two minutes.
    • At intervals of not more than one minute.

  2. Question 2

    At what intervals should a power-driven vessel underway but stopped and making no way through the water sound two prolonged blasts in or near an area of restricted visibility?
    • At intervals of not more than two minutes.
    • At intervals of not less than five minutes.
    • At intervals of not less than two minutes.
    • At intervals of not more than one minute.

  3. Question 3

    At what intervals should a vessel not under command, or a vessel restricted in her ability to manoeuvre, a vessel constrained by her draft, a sailing vessel, a vessel engaged in fishing and a vessel engaged in towing or pushing another vessel, sound three blasts in succession when in or near an area of restricted visibility?
    • At intervals of not less than five minutes.
    • At intervals of not less than two minutes.
    • At intervals of not more than one minute.
    • At intervals of not more than two minutes.

  4. Question 4

    If the vessel is fitted with two whistles that are spaced apart more than 100 metres, how should the whistles be arranged?
    • They should be arranged so that they are not sounded simultaneously.
    • They should be arranged so that only one can be used at a time.
    • They should be arranged so that the forward whistle always sounds first and then the aft whistle sounds with a 10 second delay.
    • They should be arranged so that they are sounded simultaneously.

  5. Question 5

    In which publications can specific guidance and instructions on navigation in restricted visibility be found?
    • In the Bridge Procedures Guide, in Bridge Team Management and in the Passage Planning Guide.
    • In the Bridge Procedures Guide, in COLREGS and in the Mariners’ Handbook.
    • In the Deck Log Book and in the Company Navigation Manual.
    • In the Master’s Night Order Book.

Preview — 5 of 18 questions

You are seeing the first 5 questions with answers. Unlock the remaining 13 to study the whole test — online or offline.

About this CBT test

TOTS 1A-Navigating in Restricted Visibility is a CBT test with 18 questions and verified answers. Common topics include: sound signal, through water, near area, visibility, power-driven, periods, intervals, underway.

You can practise the free questions online — one at a time, with the correct answer — or unlock the whole test and download it to study offline, without internet.

Related CBT tests