A.weather vane，wind vane or wind sock
B.hydrometer
C.hygrometer
D.sling psychrometer
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A.set the relief valve
B.check the lubrication system
C.vent the pump casing
D.open the pump suction and discharge valves
A.increase engine speed to insure adequate flow of oil to all parts of the engine
B.pay no attention unless there are unusual noises from the engine
C.check operating pressures and temperatures，and check for leaks
D.run the engine at idle until the temperature has increased
A.shallow water
B.an engine that is misfiring
C.a tight tail shaft gland
D.worn stern bearing or misalignment
最新試題
As a rule，ships of most configurations，when drifting in calm water with negligible current，will lie（）.
At 0230 on 13 August，you are at mile 610.5 AHP when you see about a mile ahead lights on the water near the left bank. What might you see when you come abreast of these lights? （）
As you approach Old River Control Structure Light you see a flashing amber light. You should（）.
At 0715 you take the following bearings: Race Rock Light 328°pgc; Little Gull Island Light 249°pgc; Mt. Prospect Antenna 036°pgc. Based on your 0715 fix，which statement is TRUE?（）
As a high pressure system approaches，the barometer reading（）.
As it approaches，a typical warm front will bring（）.
As the temperature of an air mass decreases，the（）.
At 2200 you take the following loran readings: 9960-W-15064.5; 9960-Y-43954.8. Which statement is TRUE? （）
At 1810，you sight a buoy on your starboard side labeled “19”. This buoy marks（）.
Apparent wind speed blowing across a ship under tow can be measured by a(n)（）.