In the celestial equator system of coordinates, what is comparable to latitude on the terrestrial sphere?
A) Altitude B) Right ascension C) Celestial meridians D) Declination E)NULL
Soru Kategorisi Güverte
The part of a sextant mounted directly over the pivot of the index arm is the __________.?
A) index mirror B) horizon glass C) micrometer drum D) telescope E)NULL
The presence of stratus clouds and a dying wind will usually result in __________.?
A) heavy rain B) heavy snow C) thick fog D) clearing skies E)NULL
When drawing a weather map and an isobar crosses a front, the isobar is drawn __________.?
A) perpendicular to the front B) kinked and pointing away from the low C) kinked and pointing towards the low D) kinked and pointing towards the high for a warm front only E)NULL
A daymark used to indicate the starboard side of the channel when approaching from seaward will have the shape indicated by what letter in illustration D045NG?
A) A B) B C) C D) D E)NULL
The velocity of the apparent wind can be less than the true wind and from the same direction, if certain conditions are present. One condition is that the __________.?
A) ship’s speed is more than the true wind velocity B) true wind is from dead astern C) true wind is on the beam D) true wind is from dead ahead E)NULL
The initial great circle course angle between LAT 23°00’S, LONG 42°00’W and LAT 34°00’S, LONG 18°00’E is 063.8°. What is the true course?
A) 063.8°T B) 116.2°T C) 243.8°T D) 296.2°T E)NULL
Diagram Number D037NG represents a movable dam. If there is high water and the wickets are down so that there is an unobstructed navigable pass through the dam, which light(s) will be shown at D if the lock walls and piers are not awash?
A) One amber light B) One red light C) Two red lights D) Three red lights E)NULL
Which magnetic compass corrector(s) CANNOT be set while the vessel is on a heading of magnetic north or magnetic south?
A) Athwartships magnets B) Heeling magnet C) Flinders bar D) All of the above can be set on magnetic north or magnetic south headings. E)NULL
You are on a voyage from New Orleans to Boston. When navigating off the Florida coast, you will get the greatest benefit from the Gulf Stream if you navigate __________.?
A) about 45 miles east of Cape Canaveral B) about 25 miles east of Daytona Beach C) along the 50-fathom curve D) close inshore between Fowey Rocks and Jupiter Inlet E)NULL