Isogonic lines are lines on a chart indicating __________.?
A) points of equal variation B) points of zero variation C) the magnetic latitude D) magnetic dip E)NULL
Arşivler Sorular
It is 1200 local time for an observer at 54°E longitude. Which statement is TRUE?
A) It is afternoon at Greenwich. B) It is midnight at 126°E longitude. C) The observer is in time zone -4. D) All of the above are true. E)NULL
On 26 February 1983, at 1750 EST (ZD +5) what will be the predicted height of tide at New Haven (city dock), CT?
A) -.3 foot (-0.1 meter) B) -.6 foot (-0.2 meter) C) 1.3 feet (0.4 meter) D) 1.6 feet (0.5 meter) E)NULL
You get underway from the oil terminal at Marcus Hook, PA, at 0815 ZT (ZD +5) on 20 February 1983, enroute to sea. You will be turning for 11 knots. What is the approximate current when you are abreast Reedy Island?
A) Slack B) 2.0 knots ebbing C) 1.5 knots flooding D) 0.5 knot flooding E)NULL
You are underway on course 050°T and your maximum speed is 12 knots. The eye of a hurricane bears 120°T, 110 miles from your position. The hurricane is moving towards 285°T at 25 knots. If you maneuver at 12 knots to avoid the hurricane, what could be the maximum CPA?
A) 77 miles B) 82 miles C) 87 miles D) 93 miles E)NULL
Which indication on the barometer is most meaningful in forecasting weather?
A) The words “Fair — Change — Rain B) The direction and rate of change of barometric pressure C) The actual barometric pressure D) The relative humidity E)NULL
Charted depth is the __________.?
A) vertical distance from the chart sounding datum to the ocean bottom, plus the height of tide B) vertical distance from the chart sounding datum to the ocean bottom C) average height of water over a specified period of time…
The lunar or tidal day is __________.?
A) about 50 minutes shorter than the solar day B) about 50 minutes longer than the solar day C) about 10 minutes longer than the solar day D) the same length as the solar day E)NULL
The wind at Frying Pan shoals has been north-northeasterly at an average velocity of 30 knots. The predicted set and drift of the rotary current are 355° at 0.8 knot. What current should you expect?
A) 010° at 1.1 knots B) 047° at 0.3 knot C) 325° at 0.7 knot D) 279° at 1.0 knot E)NULL
In the IALA Buoyage System, preferred-channel-to-port or preferred-channel-to-starboard buoys, when fitted with lights, will show a __________.?
A) quick flashing light B) long flashing light C) composite group flashing (2 + 1) light D) group flashing E)NULL