directional current
forward current
propeller current
wake current
第1题：
______ is the most common cause of ice formation．
A.The freezing of raindrops on contact with the vessel's structure
B.Drastic fall in ambient temperature
C.The deposit of water droplets on the vessel's structure
D.Snowfall
第2题：
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the ______.
A.distress position
B.spoken words “Mayday, Mayday, Mayday”
C.ship’s name
D.ship’s call letters
第3题：
Vessel’s provisions refer to ______ of the vessel.
A.Fuel oil
B.Vegetable and food
C.Spare parts on board
D.Ballast water
第4题：
If practical, when shall a manned vessel being towed sound her fog signal?______.
A.Immediately before the towing vessel sounds hers
B.Immediately after the towing vessel sounds hers.
C.As close to the mid-cycle of the towing vessel’s signals as possible
D.At any time as long as the interval is correct
第5题：
Flanking rudders effect a vessel’s heading because of the ______.
A.effect of the propeller flow on the rudders
B.water flow due to the vessel’s movement through the water
C.tunnel affect of the water flow past opposing rudders
D.discharge current being channeled to impinge on the vessel’s deadwood
第6题：
______:the vertical distance measured on the vessel’s side amidships from the load water line to the upper side of the freeboard deck or a point corresponding to it.
A.Buoyancy
B.Freeboard
C.Draft
D.Displacement
第7题：
Approaching a anchorage in fog, you hear one short, one prolonged, and one short blast in that sequence on a ship’s whistle. This indicates ______.
A.A vessel towed
B.A vessel not under command and unable to maneuver.
C.A vessel anchored giving warning of her position.
D.A vessel stopped dead in the water.
第8题：
Which of the following would be considered downflooding on a fishing vessel as defined in regulation?
A.Vessel heels until water enters a hatch
B.Vessel in collision floods through a damaged area above the waterline
C.Vessel takes on water due to the hatches being left open in heavy rain
D.Vessel takes on water by the propeller shaft due to failure of the stern gland
第9题：
I AM MAKING WATER means ______.
A.My vessel is leaking
B.My vessel is producing fresh water
C.My vessel is producing sea water
D.Sea water is de-salted on board my vessel
第10题：
Rudder action will become more effective
The vessel's list will change
The vessel's trim will change
An increase in speed will occur