A.spider element B.sensitive element C.link arm D.pickup transformer
A.Serrated range rings B.Indirect echoes C.Multiple echoes D.Blind sector
A.Magnetic compass table B.Magnetic meridians C.Isogonic lines D.Variation is not indicated on small-scale nautical charts
A.Blind sectors B.Sheltered area C.Unseen area D.Unscanable area
A.Parallel bearings B.Long-range bearings C.Short-range bearings D.Cross bearings
A.Compass error is negligible at or near the earth's magnetic poles B.It does not have to be checked as often C.It is reliable due to it's essential simplicity D.All points on the compass rose are readily visible
A.an annual B.a constant C.a variable D.an unstable
A.Flinders bar B.transverse magnets C.fore-and-aft magnets D.soft iron spheres on the sides of the compass
A.beam B.radar C.light beacon D.reflector
A.the vessel's heading B.sea conditions C.seasons D.the vessel's position
