A) the dangerous semicircle B) the eye (center) of the storm C) that half of the storm lying to the right of the storm’s path D) that half of the storm lying to the left of the storm’s path E)NULL
A) The Flinders bar B) The heeling magnet C) Quadrantal soft iron spheres D) Bar magnets in the binnacle E)NULL
A) has a declination equal to twice that of the Sun B) comprises two stars that appear close together C) is twice as bright as a single star D) suddenly becomes much brighter and then fades E)NULL
A) 135°30’E B) 145°00’E C) 150°00’E D) 157°30’E E)NULL
A) 1020 B) 1050 C) 1120 D) 1150 E)NULL
A) divisional parts B) coefficients C) fractional parts D) equations E)NULL
A) plane tangent at one point B) cylinder tangent at one parallel C) cone tangent at one parallel D) series of cones tangent at selected parallels E)NULL
A) mile board B) dredging mark C) passing daymark D) crossing daymark E)NULL
A) Nadir B) Azimuth angle C) Altitude D) Zenith distance E)NULL
A) sea B) waves C) fetch D) swell E)NULL