1151) If the latitude is 47 degrees N and declination is 18 degrees S, the amplitude of the body when setting is W 27 degrees S
1152) You are enroute to assist vessel A. Vessel A is underway at 4.5 knots on course 233°T, and bears 264°T at 68 miles from you. What is the course to steer at 13 knots to intercept vessel A? 256°
1153) You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 284°T at 43 miles from you. What is the course to steer at 16 knots to intercept vessel A? 303°
1154) You are enroute to assist vessel A. Vessel A is underway at 6 knots on course 133°T, and bears 343°T at 92 miles from you. What is the course to steer at 9 knots to intercept vessel A? 003°
1155) Determine the approximate geographic visibility of an object, with a height above the water of 85 feet (25.9 meters), for an observer with a height of eye of 60 feet (18.3 meters). 19.9 nm
1156) You are taking bearings on two known objects ashore. The BEST fix is obtained when the angle between the lines of position is __________. 90°
1157) A vessel's position should be plotted using bearings of ________________. fixed known objects on shore
1158) Mariners should be careful about taking RDF bearings on commercial stations broadcasting entertainment programs. What condition would probably NOT affect such a bearing? The shorter wave length of the broadcast band tends to re-radiate from the vessel's structure
1159) You are swinging ship to calibrate the RDF. The RDF gyro bearing is 308 degrees at the same time the visual bearing is 310 degrees pgc. The gyro error is 2 degrees E. At the time of the bearing, the heading was 270 degrees pgc. Which statement is TRUE? the correction is +2 degrees on an RDF bearing of 040 degrees relative
1160) You are enroute to assist vessel A. Vessel A is underway at 6 knots on course 133°T, and bears 042°T, 105 miles from you. What is the time to intercept if you make 10 knots? 12h 58m
1161) You are enroute to assist vessel A. Vessel A is underway at 6 knots on course 133°T, and bears 343°T at 92 miles from you. What is the time to intercept if you make 9 knots? 6h 43m
1162) You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 284°T at 43 miles from you. What is the time to intercept if you make 16 knots? 2h 32m
1163) You are proceeding up a channel at night. It is marked by a range which bears 185° T. You steady up on a compass course of 180° with the range in line dead ahead. This indicates that you(r) _________________. compass has some easterly error
1164) You are enroute to assist vessel A. Vessel A is underway at 4.5 knots on course 233°T, and bears 264°T, 68 miles from you. What is the time to intercept if you make 13 Knots? 7h 34m
1165) A buoy bears 178°T at 3000 yards (2700 meters). What is the course to make good to leave the buoy 100 yards (90 meters) to port? 180°T
1166) You are enroute to assist vessel A. Vessel A is underway at 5 knots on course 063°T, and bears 136°T at 78 miles from you. What is the course to steer at 13 knots to intercept vessel A? 114°
1167) You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 248°T at 64 miles from you. What is the time to intercept if you make 13 knots? 3h 44m
1168) You are enroute to assist vessel A. Vessel A is underway at 6 knots on course 133°T, and bears 042° at 105 miles from you. What is the course to steer at 10 knots to intercept vessel A? 079°
1169) You are underway at 5 knots and see on your radar a contact 10 miles directly astern of you. 12 minutes later, the contact is 8 miles directly astern of you. What is the estimated speed of the contact? 15 knots
1170) You are inbound in a channel marked by a range. The range line is 309°T. You are steering 306°T. The range appears as shown and is closing. Which action should you take? Continue on course until the range is closed, then alter course to the right.
1171) When approaching a preferred-channel buoy, the best channel is NOT indicated by the _____________. color and shape of topmark
1172) A buoy marking a wreck will show a(n) __________. white light FL (2) and a topmark of 2 black spheres
1173) A buoy with a composite group-flashing light indicates a(n) __________. bifurcation
1174) A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water in the area is on the __________. north side of the mark
1175) A deadhead is a(n) __________. tree or log awash in a nearly vertical position
1176) A flashing green light displayed at a single lock means that the lock is __________. ready for entrance
1177) A light that has a light period shorter than its dark period is described as __________. flashing
1178) A lighted buoy to be left to starboard, when entering a U.S. port from seaward, shall have a __________. red light
1179) A preferred-channel buoy may be __________. lettered
1180) A special mark (yellow buoy), if lighted, may exhibit which light rhythm? Flashing
1181) A triangular daymark would be colored __________. red
1182) A white buoy with an open-faced orange diamond on it indicates __________. danger
1183) A white buoy with an orange rectangle on it displays __________. directions
1184) A white buoy with an orange rectangle on it is used to indicate __________. general information
1185) An orange and white buoy marking a danger area will have what symbol on it? Open-faced diamond
1186) An orange and white buoy with a rectangle on it is a(n) __________. informational buoy
1187) Buoys which mark isolated dangers are painted with alternating _____________ . red and black bands
1188) Daymarks marking the starboard side of the channel when going towards the sea are __________. green squares
1189) Entering from seaward, triangular-shaped daymarks are used to mark __________. the starboard side of the channel
1190) Green lights may appear on __________. horizontally banded buoys
1191) IN REGION A of the IALA Buoyage System, when entering from seaward, the port side of a channel would be marked by a __________. red can buoy
1192) IN REGION A of the IALA Buoyage System, when entering from seaward, the starboard side of a channel would be marked by a __________. green conical buoy
1193) In the IALA Maritime Buoyage System, a red and white vertically-striped buoy is used as a(n) __________. safe water mark
1194) In which country would you expect the channels to be marked with the IALA-B Buoyage System? Brazil
1195) Lighted information markers show __________. white lights
1196) Port side daymarks may be __________. numbered
1197) Red lights may appear on __________. horizontally banded buoys
1198) The characteristic of a lighted cardinal mark may be __________. very quick flashing
1199) Under the IALA Buoyage Systems, a spherical buoy will mark the __________. safe water
1200) Under the IALA-A Buoyage system, a buoy marking the starboard side of the channel when approaching from seaward may have a __________. triangular topmark
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