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
At 1920，the buoy forward of your starboard beam is（）.
As compared to carbon dioxide，dry chemical has which advantage?（）
As it approaches，a typical warm front will bring（）.
Apparent time is based on（）.
Aphelion is the point where the Sun（）.
As the temperature of an air mass decreases，the（）.
As the South Equatorial Current approaches the east coast of Africa，it divides with the main part flowing south to form the warm（）.
At 0815，visibility is excellent and you can see Montauk Point. Montauk Point Light is（）.
At 0400 your vessel is dead in the water and in heavy fog. Your loran set fixes your position at LAT 41°12.1’N，LONG 72°43.5’W. Bottom samples are taken and indicate a composition of soft mud and shell. Your fathometer reads 40 feet. If the vessel draws 9 feet of water，which of the following is TRUE?（）
At 1810，you sight a buoy on your starboard side labeled “19”. This buoy marks（）.