A position obtained by applying ONLY your vessel’s course and speed to a known position is a __________.?
A) running fix B) probable position C) fix D) dead-reckoning position E)NULL
Arşivler Sorular
You take a bearing of 191° and 313° to two objects. Which bearing of a third object will give the best fix?
A) 001° B) 069° C) 209° D) 356° E)NULL
You have been observing your radar screen and notice that a contact on the screen has remained in the same position, relative to you, for several minutes. Your vessel is making 10 knots through the water. Which statement is TRUE?
A) The contact is dead in the water. B) The contact is on the same course and speed as your vessel. C) The contact is on a reciprocal course at the same speed as your vessel. D) The radar is…
Magnetic information on a chart may be __________.?
A) found in the center(s) of the compass rose(s) B) indicated by isogonic lines C) found in a note on the chart D) All of the above E)NULL
You are upbound approaching a lock and dam and see two green lights in a vertical line. This indicates __________.?
A) the downstream end of an intermediate wall B) that a double lockage is in progress C) the downstream end of the land wall D) the navigable pass of a fixed weir dam E)NULL
The first point of Aries is the point where the Sun is at __________.?
A) maximum declination north B) maximum declination south C) 0° declination going to northerly declinations D) 0° declination going to southerly declinations E)NULL
A chart has extensive corrections to be made to it. When these are made and the chart is again printed, the chart issue is a __________.?
A) first edition B) new edition C) revised edition D) reprint E)NULL
Civil twilight begins at 1910 zone time on 20 July 1981. Your DR position at that time is LAT 22°16’N, LONG 150°06’W. Which statement concerning the planets available for evening sights is TRUE?
A) Venus will have a westerly meridian angle. B) Mars will set about one hour after the Sun sets. C) Mars, Venus, Jupiter, and Saturn will be above the horizon. D) Sights of Saturn, Jupiter, and Venus will yield a…
On March 17, at 0500 zone time, you cross the 180th meridian steaming eastward to west longitude. What is your local time?
A) You are in -12 time zone. B) It is 1700, March 18. C) It is 0500, March 16. D) It is 0500, March 18. E)NULL
When the declination of the Moon is 0°12.5’S, you can expect some tidal currents in Gulf Coast ports to __________.?
A) have either a double ebb or a double flood B) become weak and variable C) become reversing currents D) exceed the predicted velocities E)NULL