You are underway in reduced visibility.You hear the fog signal of another vessel about 20° on your starboard bow.Risk of collision may exist.You should ().
- A.alter course to starboard to pass around the other vessel
- B.reduce your speed to bare steerageway
- C.slow your engines and let the other vessel pass ahead of you
- D.alter course to port to pass the other vessel on its portside
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For the purpose of training and drills，if reasonable and practicable，rescue boats on board must be launched with their assigned crew ______.
- A.once a week
- B.once a month
- C.once a year
- D.twice a year
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The height of tide is the ().
- A.Depth of water at a specific time due to tidal effect
- B.Difference between the depth of the water and the area's tidal datum
- C.Difference between the depth of the water and the high water tidal level
- D.Difference between the depth of the water at high tide and the depth of the water at low tide
-
The horizontal fore-and-aft movement of a vessel is called ().
- A.yaw
- B.sway
- C.heave
- D.surge
-
Index error of a sextant is primarily caused by ().
- A.Improperly correcting the other errors in a sextant
- B.The horizon glass not being parallel to the horizon mirror
- C.The horizon glass not being parallel to the index mirror
- D.Human error in taking a celestial observation
-
Which of the following statements regarding low expansion foam and its application is INCORRECT ().
- A.Foam should not be used on electrical fires
- B.One kilo of low expansion foam solution produces much more foam
- C.Foam is only efficient when it covers the top of burning combustibles
- D.A stream of foam should be deflected off the deck in order to best agitate the fire
-
You can expect frontal activity when two air masses collide and ().
- A.their barometric pressures and temperatures are the same
- B.there are differences in how they track along the jet stream
- C.there are no significant differences between their temperatures and moisture content
- D.there are significant differences between the temperature of each air mass
-
The pilot motor launches are ______ blue，with the PILOT in whit
- A.furnished
- B.painted
- C.prepared
- D.provided
-
Timber can be stowed ().
- A.Only on deck
- B.Only in holds
- C.In forecastle，bridge and poop
- D.Both on deck and in holds
-
Vertical partitions providing strength and compartmentation on a ship are called ().
- A.decks
- B.bulkheads
- C.joiner work
- D.walls
-
Which devices may be used as part of an internal communication system on a towing vessel ().
- A.Sound-powered telephones
- B.Portable radios
- C.Either fixed or portable equipment
- D.All of the above
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