A buoy marking a wreck will show a(n)（）.
When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found?（）
A yellow buoy may mark a(n)（）.
An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? （）
At 1810，a red buoy bears 010° relative. This buoy marks（）.
At 1810，you sight a buoy on your starboard side labeled “19”. This buoy marks（）.
When a ship is in summer zone and in seawater of density1025,she must not load to more than the upper edge of the line marked（）.
As you approach mile 427.6 AHP，you see on the right side a white buoy with orange bands and diamond. This buoy marks（）.
When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?（）
When a ship is in tropical zone and in seawater of density 1025,she must not load to more than the upper edge of the line marked（）.
You are sailing south on the Intracoastal Waterway（ICW）when you sight a green can buoy with a yellow square painted on it.Which of the following is TRUE（）.
When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.
A lateral system buoy displaying a quick light（）.
When approaching a preferred-channel buoy，the best channel is NOT indicated by the（）.
What action will a BGP route reflector take when it receives a prefix marked with the community attribute NO ADVERTISE from a client peer？（）
When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.
An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol? （）
When entering a channel from seaward，the numbers on buoys（）.
An orange and white buoy marking a danger area will have what symbol on it?（）
A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
When steering a tow downstream around the shape of a sand bar，and staying on the proper side of the buoys，an operator should be cautious of（）.
Buoys which mark isolated dangers are painted with alternating（）.
When you hear a question, you should decide on the correct answer from the 4 choices marked A), B), C) and D).
There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D given in your test paper.
