A.positive
B.negative
C.zero
D.vertical
您可能感興趣的試卷
你可能感興趣的試題
A.If the quadrantal spheres are out as far as possible replace them with smaller spheres
B.If the quadrantal spheres are in as far as possible remove one of the spheres
C.If the quadrantal spheres are in as far as possible replace them with smaller spheres
D.If the quadrantal spheres are out as far as possible，move the quadrantal spheres in
A.If the quadrantal spheres are all the way out，replace them with smaller spheres
B.If the quadrantal spheres are all the way in，replace them with larger spheres
C.If the quadrantal spheres are all of the way out，move the spheres in
D.If the quadrantal spheres are all the way out，replace them with larger spheres.
A.Move the quadrantal spheres closer to the compass
B.Raise the heeling magnet if the red end is up
C.Remove some of the Flinders bar
D.Raise or lower the athwartship magnets
A.If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should add some magnets.
B.If the blue ends of the magnets are aft you should lower the fore-and-aft tray
C.If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should reverse the magnets
D.If the blue ends of the magnets are forward，and the fore-and-aft tray is at the bottom，you should add some magnets
A.The bow will swing to starboard
B.The bow will swing to port
C.The vessel will steer a zigzag course
D.The vessel will steer a fairly straight course.
最新試題
A vessel is to make a voyage between New York and San Juan，Puerto Rico，and return. The crew should be signed on（）.
（）is due，in spite of that the salvage services have been rendered by or to vessel belonged to the same owner.
A vessel displaying three red lights in a vertical line is（）.
A vessel is “l(fā)isted” when it is（）.
A vessel is heading magnetic northwest and its magnetic compass indicates a heading of 312°. What action should be taken to remove this error during compass adjustment? （）
A vessel or object being towed astern shall display a(n)（）.
A vessel is heading magnetic northwest and its magnetic compass indicates a heading of 317°. What action should be taken to remove this error during compass adjustment? （）
A vessel is overtaking when she can see which light(s) of a vessel ahead?（）
A vessel is underway with a work stage rigged over the side. A seaman may work on the stage，but only when（）.
A vessel showing a green light over a white light in a vertical line above the level of the sidelights is（）.