A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when（）.
In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels except a vessel（）.
On a bulk chemical carrier，water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called（）.
The bypass valve on a self-contained breathing device should be opened if（）.
On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.
After putting on a self-contained breathing apparatus，you open the air supply and hear a continuous ringing of a bell. What does this mean? （）
In a crossing situation on international waters, a short blast by the give-way vessel indicates that the vessel（）.
A liferaft which has inflated bottom-up on the water（）.
The INMARSAT system is open for use by（）countries on a non-discriminatory basis.
In evacuation from a ship，an individual without the option of a survival craft or liferaft should enter the water on the leeward side，except when（）.
Most drill ships and barges have a walled opening below the derrick，open to the water’s surface and through which various drilling tools can pass down to the sea floor called a （）.
The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by （）.
How is a safe water mark，that can be passed close aboard on either side，painted and lighted?（）
A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a（）.
The number of rowing oars that must be carried in a motor-propelled open lifeboat on a cargo vessel is（）.
The Inmarsat system is open for use by（）countries on a non-discriminatory basis.
A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water in the area is on the（）.
If a seaplane is not used as a means of transpiration on water but is capable of being used so，it shall（）.
A rigid lifesaving device only designed for survivors to hold on to while in the water is a（）.
You are anchoring in 16 fathoms of water．On a small to medium size vessel，the（）.
The danger of a charged hose left unattended on deck with the nozzle open is（）.
I am keeping my __________ open. I have not made a decision on either matter.
Water boils __________ if there is a cover on the pan.
A white buoy with an open-faced orange diamond on it indicates （).A.dangerB.vessels are ex
