A、one blast，4 to 6 seconds in duration
B、three blasts，4 to 6 seconds in duration
C、one continuous blast until you are able to see around the bend
D、one blast，8 to 10 seconds in duration
更多“You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.”相关的问题
A、A.Towing B、B.Engaged on pilotage duty C、C.Aground in a fairway D、D.Stopped and making no way through the water
A、stop your engines B、sound two prolonged blasts of the whistle C、sound the danger signal D、slow to bare steerageway
A、The light is characterized as alternately flashing B、The lighthouse has lost power and has switched to emergency lighting C、It is the identifying light characteristic of the lighthouse D、You have entered an area of shoal water or other hazard
A、the light is characterized as alternately flashing B、the lighthouse has lost power and has switched to emergency lighting C、it is the identifying light characteristic of the lighthouse D、you have entered an area of shoal water or other hazard
A、You are backing up to tape and your tape device performs its own compression. B、You are making image copies, and you have not enabled tablespace compression. C、You are using disk-based backups and disk space in your Flash Recovery Area, or other disk-based backup destinations are limited. D、You are performing your backups to some device over a network where reduced network bandwidth is more important than CPU usage. E、You are using some archival backup media, such as CD or DVD, where reducing backup sizes saves media costs and archival storage.
A、A.Passengers are excluded from the pilothouse while underway B、B.Passengers are permitted in the pilothouse during daylight hours only C、C.Passengers are permitted to visit the pilothouse when authorized by the Master and officer of the watch D、D.Passengers are permitted in the pilothouse when they are escorted by a ship's officer
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