海船船员
A jack-up drilling rig being towed must ______.A.turn off all lights that interfere with the navigation lightsB.turn on all available working lights on deckC.ring the bell rapidly for five seconds once a minuteD.display two black diamonds in a vertical li
题目
A jack-up drilling rig being towed must ______.
A.turn off all lights that interfere with the navigation lights
B.turn on all available working lights on deck
C.ring the bell rapidly for five seconds once a minute
D.display two black diamonds in a vertical line during the day
相似问题和答案
第1题：
Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white?
A.A vessel engaged in diving operations
B.A pilot vessel
C.A vessel trawling
D.All of the above
第2题：
A partly submerged vessel or object being towed，which is not readily noticeable，shall show ______.
A.yellow lights at each end
B.two red lights in a vertical line
C.a black ball
D.a diamond shape
第3题：
Navigation lights must be displayed in all weathers from sunset to sunrise. They also _____.
A.must be displayed when day signals are being used
B.must be displayed when moored to a pier
C.may be extingushed at night on open waters when no other vessels are in the area
D.may be displayed during daylight
航行号灯必须在任何天气里从日落到日出时间里被显示。它们还可能在白天被显示。
第4题：
A vessel or object being towed astern shall display a(n) ______.
A.forward masthead light
B.after masthead light
C.stern light
D.All of the above
第5题：
When a marine surveyor is employed to assist in the move of a mobile offshore drilling unit，he ______.
A.becomes responsible for the safe movement of the rig
B.relieves the Offshore Installation Manager at the moment the rig is free from the bottom
C.must be designated as the person in charge of the rig
D.is a specialist who is hired to provide advice and guidance on aspects of the move
第6题：
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound ______.
A.a 2-second blast every 20 seconds
B.a 4-second blast every 20 seconds
C.an 8-second blast every 30 seconds
D.a 10-second blast every 30 seconds
第7题：
When cargo aboard a jack-up in transit becomes adrift，the tow vessel should be asked to ______.
A.turn into the seas
B.turn to be parallel to the seas
C.reduce speed
D.increase speed
第8题：
A mobile offshore drilling unit must display obstruction lights when it is on the waters over the Outer Continental Shelf and is ______.
A.under tow
B.fixed to the seabed
C.underway
D.All of the above
第9题：
Where will you find the requirements for the signals that must be sounded by a mobile offshore drilling unit that is being towed through an area of restricted visibility?
A.COLREGS
B.MMS Rules
C.SOLAS Convention
D.Coast Pilot
第10题：
The vessel must carry only the lights that comply with the rules; the others may be omitted
The vessel's lights must comply as closely as possible，as determined by her government
The vessel must be altered to permit full compliance with the rules
An all-round light should be substituted for the after masthead light and the stern light