The magnetic compass operates on the principle that __________.?
A) like magnetic poles attract B) unlike magnetic poles repel C) unlike poles attract D) the poles of the compass line up with the geographic poles of the earth E)NULL
Arşivler Sorular
When crossing the magnetic equator the __________.?
A) Flinders bar should be inverted B) heeling magnet should be inverted C) the quadrantal spheres should be rotated 180° D) Flinders bar should be moved to the opposite side of the binnacle E)NULL
You are underway on course 050°T and your maximum speed is 10 knots. The eye of a hurricane bears 100°T, 90 miles from your position. The hurricane is moving towards 285°T at 19 knots. Which course should you steer at 10 knots to have the maximum CPA?
A) 221° B) 226° C) 233° D) 238° E)NULL
The annual change in variation for an area can be found in __________.?
A) the handbook for Magnetic Compass Adjustment, Pub 226 B) the center of the compass rose on a chart of the area C) the compass deviation table D) Variation does not change. E)NULL
What is the equivalent of 47 min. 20 sec. in arc units?
A) 8°27′ B) 11°50′ C) 13°42′ D) 13°56′ E)NULL
In the horizon system of coordinates what is equivalent to latitude on the Earth?
A) Altitude B) Zenith C) Declination D) Zenith distance E)NULL
The buoy indicated by the letter A in illustration D044NG is a __________.?
A) nun B) can C) spar D) pillar E)NULL
If a towboat requires a double lockage it shall give which sound signal at a distance of not more than one mile from the lock?
A) One short blast followed by two long blasts B) One long blast followed by one short blast C) Two long blasts followed by one short blast D) One long blast followed by two short blasts E)NULL
A white buoy with an orange rectangle on it displays __________.?
A) directions B) dangers C) exclusion areas D) All of the above E)NULL
On 5 March 1983, at 0630 EST (ZD +5), what will be the predicted height of tide at Ocracoke, Ocracoke Inlet, NC?
A) 0.1 foot B) 1.2 feet C) 1.9 feet D) 2.3 feet E)NULL