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1题：
A mobile offshore drilling unit will show the day-shape in DIAGRAM 10 to indicate that it is ______.
A.at anchor
B.being towed
C.aground
D.drilling
第2题：
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
第3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4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5题：
In the case of an injury causing a person to be incapacitated，the Master or person in charge of a mobile offshore drilling unit must submit a report to the ______.
A.nearest Marine Safety or Marine Inspection Office
B.nearest hospital
C.Department of Energy
D.American Bureau of Shipping
第6题：
A report of casualty to a mobile offshore drilling unit must be made in writing to which office?
A.Commandant of the Coast Guard
B.Owner of the unit
C.Nearest Coast Guard Marine Safety Office
D.Captain of the nearest port
第7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8题：
A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?
A.When the towing vessel enters the fog
B.When the drilling rig enters the fog
C.When the towing vessel can no longer be seen from the rig
D.Immediately
第9题：
An offshore drilling unit must be equipped with a first aid kit approved by the ______.
A.Coast Guard
B.American Bureau of Shipping
C.Minerals Management Service
D.Mine Safety and Health Administration
第10题：
What is true regarding subqueries?（）