A low pressure annular preventer which is used to direct flow of kick fluids away from the rig floor is called a ().
时间:2022-10-21
The latest known details of lights are given in().
时间:2022-10-13
Lines drawn through points on the Earth having the same atmospheric pressure are known as ().
时间:2022-10-12
A low HDOP (Horizontal Dilution of Precision) number such as 2 indicates a ().
时间:2022-10-11
A pilot chart does NOT contain information about ().
时间:2022-10-10
Mariners not entering the port are()to keep at least one mile off.
After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to().
Many of the lights on this coast are placed so high as to be frequently obscured by().
时间:2022-10-07
The Coast Radio Stations are found in().
时间:2022-10-05
A lashing used to secure two barges side by side,lashed in an "X" fashion,is called a ().
时间:2022-10-04
A light signal consisting of three flashes means ().
A rigid replica of the International Code flag “A” may be shown by a vessel ().
时间:2022-09-28
A man aboard a vessel,signaling by raising and lowering his outstretched arms to each side,is indicating().
时间:2022-09-27
A precaution you should take before bunkering is to () .
时间:2022-09-25
()gives listings of all lighthouses,lightships,lit floating marks(over 8m in height),fog signals and lights of navigational significance.
时间:2022-09-24