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 the South Equatorial Current approaches the east coast of Africa，it divides with the main part flowing south to form the warm（）.
As the temperature of an air mass decreases，the（）.
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 the temperature of the air reaches the dew point，（）.
As a high pressure system approaches，the barometer reading（）.
At 1810，you sight a buoy on your starboard side labeled “19”. This buoy marks（）.
At 0100 you notice that the wind has become SSW’ly and has freshened. At 0200 you sight Stratford Point Lighted Bell Buoy “18” bearing 268°pgc. At 0215 the buoy bears 269°pgc. Which statement is TRUE?（）
At 0815，visibility is excellent and you can see Montauk Point. Montauk Point is（）.
As it approaches，a typical warm front will bring（）.
Antares is found in what constellation?（）