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
您可能感興趣的試卷
你可能感興趣的試題
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
At 0815，visibility is excellent and you can see Montauk Point. Montauk Point is（）.
As a vessel changes course to starboard，the compass card in a magnetic compass（）.
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? （）
At 1923，you increase speed to make good 9.2 mph. What is the first gage you will pass after your speed change?（）
At 2200 you take the following loran readings: 9960-W-15064.5; 9960-Y-43954.8. Which statement is TRUE? （）
As it approaches，a typical warm front will bring（）.
At 0530，your position is LAT 41°12.6’N，LONG 72°08.5’W. What is the color of New London Light?（）
Apparent time is based on（）.
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?（）
As seen from the tow，what should connect the leading ends of both towing bridle legs to the main towing hawser?（）