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? （）

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• 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 . 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 i

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• The difference between magnetic heading and compass heading is called（）.

  A . variation B . deviation C . compass error D . drift

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• When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）

  A . The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headings B . After the new heading is reached，the vessel should steam on that course for at least two minutes before the adjustment C . During the course change，you should gently tap the compass to remove any error caused by friction on the pivot bearing D . After steadying on the new heading，the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error

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• （）means check the swing of the vessel’s head in a turn.

  A . Steady B . Meet her C . Midships D . Stop engine

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• If the compass heading and the magnetic heading are the same then（）.

  A . the deviation has been offset by the variation B . there is something wrong with the compass C . the compass is being influenced by nearby metals D . there is no deviation on that heading

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• A head-on situation at night is one in which you see dead ahead a vessel showing（）.

  A . one sidelight B . one sidelight and a masthead light C . one sidelight and two masthead lights D . both sidelights of a vessel and her masthead light(s)

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• A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment? （）

  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 magnet

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• In a racetrack turn，to recover a man overboard，the vessel is steadied for the SECOND time after a turn of how many degrees from the original heading?（）

  A . 60° B . 135° C . 180° D . 360&deg

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• Which magnetic compass corrector（s）CANNOT be set on a heading of magnetic east or magnetic west（）.

  A . Heeling magnet B . Flinders bar C . Fore-and-aft magnets D . All of the above can be set on magnetic east or magnetic west heading

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• Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?（）

  A . Add ballast in the afterpeak B . Add ballast forward C . Alter course D . Reduce speed

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• A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°. Which action should be taken to remove this error during compass adjustment?（）

  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 magnet

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• The standard magnetic compass heading differs from the true heading by（）.

  A . compass error B . latitude C . variation D . deviatio

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• When two power-driven vessels are meeting head-on and there is a risk of collision,each shall（）.

  A . stop her engines B . alter course to starboard C . sound the danger signal D . back dow

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• A vessel constrained by her draught shall，when risk of collision with another vessel in a crossing or head-on situation exists，（）.

  A . apply the relevant Steering and Sailing Rules as a power-driven vessel B . apply the relevant Steering and Sailing Rules as a Sailing vessel C . apply the relevant Steering and Sailing Rules as a vessel not under command D . apply the relevant Steering and Sailing Rules as a vessel engaged in a towing operatio

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• When taking a Pilot from a pilot vessel in a seaway，which way should you head your vessel if the ladder is on the leeward side（）.

  A . Bow to the sea and no way on your vessel B . Sea on the lee quarter with ship moving ahead slowly C . Sea on the weather bow and ship moving ahead slowly D . Sea on the quarter with sternway on the shi

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• The compass heading of a vessel differs from the true heading by（）.

  A . compass error B . variation C . magnetic dip D . deviatio

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• Flanking rudders effect a vessel’s heading because of the（）.

  A . Effect of the propeller flow on the rudders B . Water flow due to the vessel's movement through the water C . Tunnel affect of the water flow past opposing rudders D . Discharge current being channeled to impinge on the vessel's deadwood

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• Two vessels meeting in a “head-on” situation are directed by the Rules to（）.

  A . alter course to starboard and pass port to port B . alter course to port and pass starboard to starboard C . decide on which side the passage will occur by matching whistle signals D . slow to bare steerageway

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• A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and （）.

  A . one sidelight and the masthead light are visible B . the vessels will pass closer than half a mile C . both vessels sound one prolonged blast D . both sidelights and masthead light(s) are visible

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• The permanent magnetism of a vessel may change in polarity due to（）.

  A . being moored for a long time on one heading B . being struck by lighting C . steaming from the north magnetic hemisphere to the south magnetic hemisphere D . loading a homogenous magnetic cargo such as steel plate，iron bars，etc

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• The heading of a vessel is indicated by what part of the compass? （）

  A . Card B . Needle C . Lubber's line D . Gimbal

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• The total magnetic effects which cause deviation of a vessel’s compass can be broken down into a series of components which are referred to as（）.

  A . divisional parts B . coefficients C . fractional parts D . equatio

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• Magnetic heading differs from compass heading by（）.

  A . compass error B . true heading C . variation D . deviatio

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