266. Magnetic compass deviation ______.

A . making a structural change to the vessel B . a short circuit near the compass C . belt buckles D . All of the above

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

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

A . be shielded from direct sunlight B . be locked into a constant heading C . have any air bubbles replaced with nitrogen D . have the compensating magnets removed

A . Quadrantal spheres B . Heeling magnets C . Athwartships magnets D . Fore-and-aft magnet

A . zero B . equal to variation C . eliminated by adjusting the compass D . constant at any geographical locatio

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

A . induced magnetism in vertical soft iron B . induced magnetism in horizontal soft iron C . permanent magnetism in ship's steel D . vessel's inclination from the vertical

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

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

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

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

A . before correcting for any deviation B . after correcting for variation C . after adjusting the fore-and-aft and athwartships permanent magnets D . before the quadrantal correctors are placed on the compa

A . nonmagnetic B . weatherproof C . corrosion resistant D . capable of being permanently affixed to the vessel

A . ship's clock B . engine movement recorder C . repeaters D . navigation light

A . deviation B . variation C . local attraction D . All of the above

A . Compass error and variation are equal B . Compass north will be true north C . Variation will equal deviation D . There will be no compass error

A . compass north B . the direction of the vessel's head C . magnetic north D . a relative bearing taken with an azimuth circle

A . Magnetic materials of the same polarity repel each other and those of opposite polarity attract B . The Earth's magnetic lines of force are parallel to the surface of the Earth C . Magnetic meridians connect points of equal magnetic variation D . The compass needle(s) will，when properly compensated，lie parallel to the isogonic lines of the Earth

A . It compensates for the error caused by the vertical component of the Earth's magnetic field B . It compensates for error caused by the heeling of a vessel C . It compensates for quadrantal deviation D . It is only needed in equatorial water

A . varies depending upon the bearing used B . is the angular difference between magnetic north and compass north C . is published on the compass rose on most nautical charts D . is the angular difference between geographic and magnetic meridia

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