MARINA Deck Reviewer 101-150

101) In which voyage, between two points, is the rhumb line distance NOT approximately the same as the great circle distance? The two points are in high latitudes in the same hemisphere.

102) The paths of intended travel between three or more points is the __________. track

103) You are running parallel to the coast and plotting running fixes using bearings of the same object. You are making more speed than assumed for the running fix. In relation to the position indicated by the fix you will be __________. farther from the coast

104) The difference between the DR position and a fix, both of which have the same time, is caused by __________. current

105) A great circle crosses the equator at 17°W. It will also cross the equator at what other longitude? 163°E

106) A parallel of latitude other than the equator is a __________. small circle

107) From LAT 07°12'N, LONG 80°00'W, to LAT 47°12'S, LONG 169°18'E, the initial great circle course angle is 137.25°. How would you name this course? N 137.25°W

108) In plotting a running fix, how many fixed objects are needed to take your lines of position from? One

109) On a gnomonic chart, a great circle track between Los Angeles and Brisbane will appear as a __________. straight line

110) Which error is NOT included in the term "current" when used in relation to a fix? Known compass error

111) Which position includes the effects of wind and current? Estimated position

112) You should plot your dead reckoning position __________. at every speed change

113) You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used? The position of the object observed should be advanced to the new time and a new arc swung using the radius of the old arc.

114) All straight lines represent great circle tracks on a chart based on a(n) __________. gnomonic projection

115) A great circle crosses the equator at 141°E. It will also cross the equator at what other longitude? 39°W

116) A great circle crosses the equator at 162°E. It will also cross the equator at what other longitude? 18°W

117) A great circle will intersect the equator at how many degrees of longitude apart? 180°

118) A line of position derived from a loran reading is a section of a(n) __________. hyperbola

119) A plane perpendicular to the polar axis will never form what line on the Earth's surface? Meridian

120) A plane that cuts the Earth's surface and passes through the poles will always form __________. a meridian

121) Thirty-two meters equals __________. 104.99 feet

122) Which position includes the effects of wind and current? Estimated position

123) You plot a fix using three lines of position and find they intersect in a triangle. You should plot the position of the vessel __________. in the geometric center of the triangle

124) You are required to enter a lock on your voyage. Information on the lock regulations, signals, and radio communications can be found in __________. Coast Pilot

125) A HYDROLANT warning would normally be sent for all of the following EXCEPT __________. extinguishment of Robbins Reef Light in New York City's Upper Bay

126) General information about the location, characteristics, facilities, and services for U.S. and foreign ports may be obtained from which publication? World Port Index

127) Information on radio beacons used for marine navigation in foreign waters will be found in the __________. List of Lights

128) Information on the operating times and characteristics of foreign radio beacons can be found in which publication? List of Lights

129) Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of __________. marine broadcast Notice to Mariners

130) The Light List shows that a navigational light has a nominal range of 10 miles and a height above water of 38 feet (11.6 meters). Your height of eye is 52 feet (15.8 ,meters) and the visibility is 11.0 miles. At which approximate range will you first s 10.5 miles

131) The Sailing Directions (Planning Guide) contain information on all of the following EXCEPT __________. coastal features

132) What is NOT true concerning color sectors of lights? Color sectors are expressed in degrees from the light toward the vessel.

133) What publication contains descriptions of the coast line, buoyage systems, weather conditions, port facilities, and navigation instructions for the United States and its possessions? Coast Pilots

134) What publication contains information about the port facilities in Cadiz, Spain? World Port Index

135) When a buoy is in position only during a certain period of the year, where may the dates when the buoy is in position be found? Light List

136) When trying to sight a lighthouse you notice a glare from a town in the background. The range at which the light may be sighted due to this glare is __________. considerably reduced

137) Which factor(s) is/are used to develop the charted information of a lighthouse? Height and intensity of the light

138) Which publication contains information on navigation regulations, landmarks, channels, anchorages, tides, currents, and clearances of bridges for Chesapeake Bay? Coast Pilot

139) Which statement about radio navigational warnings is TRUE? The topics for warnings included in HYDROLANTS, HYDROPACS, and NAVAREA warnings are the same.

140) You are plotting a running fix in an area where there is a determinable current. How should this current be treated in determining the position? The course and speed made good should be determined and used to advance the LOP.

141) The Light List indicates that a light has a nominal range of 10 miles and is 11 feet high. If the visibility is 5 miles and your height of eye is 20 feet, at what approximate distance will you sight the light? 6.3 miles

142) The Light List indicates that a light has a nominal range of 13 miles and is 36 feet high (11.0 meters). If the visibility is 7.0 miles and your height of eye is 25 feet (7.6 meters), at what approximate distance will you sight the light? 10.0 miles

143) The Light List indicates that a light has a nominal range of 14 miles and is 26 feet high. If the visibility is 4 miles and your height of eye is 20 feet, at what approximate distance will you sight the light? 7.5 miles

144) The Light List shows a lighted aid to navigation on the left bank. This means that the light can be seen on the starboard side of a vessel __________. ascending the river

145) Which would you consult for information about the general current circulation in the North Atlantic Ocean? Pilot chart

146) A NAVAREA warning carries the following number; 1986/87 (11). Which statement is TRUE? This is warning number 1986 issued in 1987, and it affects sub-region 11.

147) Geographic range is the maximum distance at which a light may be seen under __________. perfect visibility conditions, limited only by the curvature of the Earth

148) Luminous range is the __________. maximum distance at which a light may be seen under existing visibility conditions

149) Mean high water is the reference plane used for __________. heights above water of land features such as lights

150) On a chart, the characteristic of the light on a lighthouse is shown as flashing white with a red sector. The red sector __________. indicates a danger area