A.MAF
B.MAB
C.MAA
D.MAE
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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
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
最新試題
At 0630 you increase speed to 12.0 knots. At 0645 Race Rock Light bears 294°pgc. At 0700 Race Rock Light bears 293°pgc. Based on this,you should().
At 0845,you are approaching the entrances to Thimble Shoal Channel. What channel must you use?()
Aphelion is the point where the Sun().
As defined in the regulations governing marine casualties a “marine employer” may be the().
As you approach mile 659.4 AHP,you see on the right descending bank a flashing green light. This light marks().
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 0815,visibility is excellent and you can see Montauk Point. Montauk Point Light is().
As a rule,ships of most configurations,when drifting in calm water with negligible current,will lie().
As you approach Giles Bend Cutoff Light (mile 367.7 LDB),what type of daymark would you see on the light structure?()