更多"When an azimuth of the Sun has been"的相关试题:
[单项选择]When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results（）.
A. In the vessel's Official Logbook
B. On the compass deviation card
C. In the compass deviation log
D. On a Napier diagram
[单项选择]When oily ballast has been pumped overboard，an entry must be made in the（）.
A. Oil Record Book
B. Official Logbook
C. deck rough log
D. engine rough log
[单项选择]When fueling has been completed（）.
A. the fuel tank fill pipe should be left open to allow vapors to vent from the tank
B. the engine should be started immediately to prevent vapor lock in the fuel line
C. all hatches should be opened and all compartments should be ventilated
D. open the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment
[单项选择]When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.
A. air from contacting the oil vapors
B. permitting re-ignition boiling of the heated oil
C. spontaneous combustion below the oil surface
D. toxic fumes from escaping to the surface
[单项选择]When reentering an engine room that has been flooded with CO2, the investigating team should initially（）.
A. leave the access door partially open
B. enter from the lowest level
C. enter from the highest level
D. attempt to operate machinery
[单项选择]When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will indicated?（）
A. Advanced ignition
B. Clogged air intake
C. Leaky exhaust valve
D. High exhaust pressure
[单项选择]When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
A. filter to remove the fuel oil
B. use the settler to remove the fuel oil
C. remove the fuel oil by centrifuging
D. drain and then renew the lube oil supply
[单项选择]When a vessel has positive stability，the distance between the line of force through B and the line of force through G is called the（）.
A. metacentric height
B. righting arm
C. righting moment
D. metacentric radius
[单项选择]When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid （） high bending moments on it.
A. compressing
B. interposing
C. imposing
D. pounding
[单项选择]Your ARPA has been tracking a target and has generated the targets course and speed.The radar did not receive a target echo on its last two scans due to the weather.What should you expect under these circumstances（）.
A. The ARPA will generate data as if the target was still being tracked by radar
B. The ARPA will give an audible and/or visual lost target alarm
C. The ARPA will generate data based on sea return echoes from the vicinity where the target was lost
D. The ARPA has lost all memory of the target and must recompute the target data
[单项选择]When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should （）.
A. increase the amount of cooling water to the condenser
B. decrease the amount of cooling water to the condenser
C. add more refrigerant to the system
D. remove some refrigerant from the system
[单项选择]When a man who has fallen overboard is being picked up by a lifeboat，the boat should approach with the wind（）.
A. astern and the victim just off the bow
B. ahead and the victim just off the bow
C. just off the bow and the victim to windward
D. just off the bow and the victim to leeward
[单项选择]When good and steady service conditions have been achieved, the running surfaces of the piston rings and cylinder liner will be（）In addition, the rings will move freely in the grooves and also be well oiled intact, and not unduly worn.
A. hazy light
B. hazy light brown
C. hazy light blue
D. hazy light grey
[单项选择]A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.
A. tagged and restowed properly in its rack
B. weighed and the charge loss recorded
C. given to the chief engineer for recharging
D. tagged "empty" and stowed separately from charged extinguishers
[单项选择]When stand-by engine instructions have been received, it’s necessary to make it sure that all valves in the various systems are（）
A. operational
B. open
C. closed securely
D. at middle position
[单项选择]My position has been obtained by（）.
A. astronomical observation
B. hydrographic survey
C. weather prediction
D. current sailing
[单项选择]You board an inflatable liferaft that has been hand launched from a sinking vessel. What should you do first after everyone is onboard the liferaft?（）.
A. Cut the painter
B. Operate the radio equipment
C. Open the equipment pack
D. Ventilate the liferaft of CO2
[单项选择]He has been a Captain（）1992.
A. after
B. since
C. before
D. for
[单项选择]The system of derricks and winches has been largely replaced on newer ships by cranes（）it is very efficient.
A. when
B. because
C. unless
D. though
