A flashing green light displayed at a single lock means that the lock is __________.?
A) ready for entrance B) ready for entrance, but gates cannot be closed completely C) being made ready for entrance D) not ready for entrance E)NULL
Arşivler Sorular
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?
A) Dead in the water B) 1 knot C) 10 knots D) 15 knots E)NULL
At 0000 you fix your position and change course to 270°T. At 0030 you again fix your position, and it is 0.5 mile east of your DR. Which statement is TRUE?
A) The set is 090°, drift 0.5 knot. B) The set is 090°, drift 1.0 knot. C) The set is 270°, drift 0.5 knot. D) The set is 270°, drift 1.0 knot. E)NULL
In reading a weather map, closely spaced pressure gradient lines would indicate __________.?
A) high winds B) high overcast clouds C) calm or light winds D) fog or steady rain E)NULL
The datum used for soundings on charts of the Atlantic Coast of the United States is mean __________.?
A) low water B) lower low water C) high water springs D) high water E)NULL
A vessel is heading magnetic north and its magnetic compass indicates a heading of 356°. What action should be taken to remove this error during compass adjustment?
A) If the blue ends of the magnets are to port, and the athwartships tray is at the top, you should remove some of the magnets. B) If the blue ends of the magnets are to starboard, and the athwartships…
A single line of position combined with a dead-reckoning position results in a(n) __________.?
A) running fix B) fix C) estimated position D) assumed position E)NULL
The passing of a low pressure system can be determined by periodically checking the __________.?
A) thermometer B) hygrometer C) barometer D) anemometer E)NULL
What is typical of warm front weather conditions?
A) An increase in pressure B) A wind shift from southwest to northwest C) Scattered cumulus clouds D) Steady precipitation E)NULL
Civil twilight starts at 1812 zone time on 26 August 1981, Your DR position at that time is LAT 21°06’S, LONG 14°56′ W. Which statement concerning the planets available for evening sights is TRUE?
A) Mars will be near the prime vertical in the eastern sky. B) Venus may be identified from Saturn and Jupiter because it is the brightest. C) Sights of Venus, Jupiter, and Saturn will yield a good three line fix.…