A.a line on a weather map connecting equal points of both temperature and pressure
B.an instrument that measures the climatological effects of temperature
C.a line connecting points of equal barometric pressure on a weather map
D.a line connecting points of equal temperature on a weather map
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A.fitted in each leg of the towing bridle
B.generally located between the "fishplate" and the main towing hawser
C.secured at the "H" bitts
D.usually made of manila hawser
A.thermometer
B.barometer
C.hygrograph
D.thermograph
A.weather vane，wind vane or wind sock
B.hydrometer
C.hygrometer
D.sling psychrometer
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
最新試題
As defined in the regulations governing marine casualties a “marine employer” may be the（）.
Any firefighting equipment that is carried in addition to the minimum required number on a ship must（）.
At 1810，a red buoy bears 010° relative. This buoy marks（）.
As you approach mile 427.6 AHP，you see on the right side a white buoy with orange bands and diamond. This buoy marks（）.
At 1810，you sight a buoy on your starboard side labeled “19”. This buoy marks（）.
As a licensed Merchant Marine Officer you are expected to（）.
Any extinguishing agent used on a Class “C” fire must have which important property? （）
At 1923，you increase speed to make good 9.2 mph. What is the first gage you will pass after your speed change?（）
Aphelion is the point where the Sun（）.
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? （）