3.-PLAN AND CONDUCT A PASSAGE - TERRESTRIAL AND COASTAL NAVIGATION
You are on watch at night and you stop the main engines. What changes would you make to your navigational lights?
Switch on two vertical red lights and switch off steaming lights.
You see a two flag signal on a ship close-by. What publication would you consult to discover its meaning?
International Code of signals.
Why should the largest scale chart available be used for navigational purposes?
Which is the more accurate means of position fixing?
You expect to sight land at 2100. By 2120 no land has been sighted, the visibility is good. What action would you take?
A vessel is under pilotage approaching a European port. Who is responsible for the safe navigation of the vessel?
Where would you find information about a vessel reporting system for a port which you are about to enter?
Your vessel is carrying a full cargo of scrap steel. Which item of bridge equipment is likely to be unreliable?
What time is used for the ship's course recorder?
Which of the following options would be considered "good seamanship"?
When must a passage plan be prepared?
What should a passage plan include?
Find the distance (departure) to the nearest whole mile between initial position
50° 00' N 178° 00' W and 50° 00' N 179° 00' E
Calculate the distance (to the nearest mile) along the great circle between position
49°18' N 123° 08' W and 33° 52' S 151° 12' E.
On the Beaufort scale, force 7 is described as a.....
A vessel in initial position 40° 30' N 179° 00' W steams due east for 240 miles. Calculate the new longitude to the nearest minute.
Calculate (using plane sailing) the distance to the nearest mile between initial position 52° 00'N 04° 00' E and 52° 20' N 02° 26' E
What is the main factor which can make actual tidal heights and times different from the predicted heights and times?
Two vessels are in latitude 62° 18' N. The longitude of one vessel is 16° 42' E and of the other is 4º 33' E. How far, to the nearest whole mile, are the vessels apart?
A vessel left 42°44'S, 16°24'W, and steamed on a course of 142°T for 261 miles. Using plane sailing or traverse table, find its DR position at the end of this run.
Calculate (using plane sailing) the distance to the nearest mile between initial position 50° 00'S 02° 00' W and 51° 20'S 01° 25' W
83 miles.
In an area with very high atmospheric pressure, the tides will...
A ship steers the following courses and distances:
080° T for 42 miles
201° T for 36 miles
145° T for 27 miles
045° T for 45 miles
Calculate (using plane sailing) the course and distance made good.
Find the distance (departure) to the nearest whole mile between initial position
48°14 N 04° 50' W and 48° 14' N 01° 22' E.
The period of a semidiurnal tide is approximately.....
What is the definition of the "luminous range" of a light?
Calculate the difference in latitude between the following two positions:
35° 20' N 20° 35' W and 50° 00' N 20° 35' W
From the following, what would be the maximum effect of barometric pressure on tidal heights?
On the Beaufort scale, force 3 is described as a....
A vessel steamed 210 miles on a course of 295°T. The departure point was 35°30'N. What latitude do you arrive at?
36°58'N
The commonest use of the ABC tables is to find the azimuth of a celestial body. These tables can also be used to.....
A ship steers the following courses and distances:
180° T for 22 miles
290° T for 73 miles
159° T for 68 miles
270° T for 16 miles
Calculate (using plane sailing) the course and distance made good.
The technique used in radar pilotage for continuously monitoring a vessel's position is called...
Calculate (using plane sailing) the distance to the nearest mile between initial position 50° 50' N 02° 00' W and 50° 00 N 01° 25' W.
From those listed, the best land target to use for a radar bearing is..
A vessel in latitude 54° 23'S longitude 16° 18' E steams on a course of 270° T until in longitude 8° 43' W. How far has she steamed to the nearest mile?
In 45°34'N, a ship sails due east from 164°10'E to 170°20'E. How far has the vessel traveled?
Calculate (using plane sailing) the true course to steer between initial position 50° 50' N 02° 00' W and 50° 00' N 01° 25' W
A vessel in initial position 60° 00 N steams due east for 240 miles. Calculate the difference in longitude to the nearest minute.
What is true of the tide at an amphidromic point?
When the moon is in opposition, the tide is...
By sailing due east for a distance of 245 miles, a vessel changed her longitude by 7°25'. What latitude was the vessel in?
Calculate the initial course (to the nearest degree) to steer along the great circle between position 45° 36' N 8° 46' W and 12° 18' N 79° 24' W
A composite great circle route is not as short a distance as a great circle route, but it is sometimes used instead. Why?
What is the definition of the "geographic range" of a light?
Which publication gives the information needed to make a safe approach to a foreign port?
A vessel is on the equator and steams on a course of 000°T for 1410 miles. What is her new latitude?
23° 30'N
Calculate the distance (to the nearest mile) along the great circle between position
45° 36' N 8° 46' W and 12° 18' N 79° 24' W
A position line on a chart is defined as a line...
somewhere on which the observer is situated.
How should tidal predictions be made for stretches of coastline between Secondary Ports?
By using a co-tidal line chart.
Great circles appear as straight lines on...
Gnomonic charts.
Spring tides normally occur...
about every two weeks.
6A vessel steers 043°T for a distance of 524 miles. Find the difference in latitude (to the nearest whole minute) and the departure (to the nearest whole mile).
Difference in latitude 383' and departure 357 miles
When tides are classed as being diurnal, there will bee......
Secondary Ports associated with Standard Ports are classed in that way because...
The shortest distance between two points on the earth's surface is...
The vertex of a great circle is the point at which it...
A chart suitable for inshore navigation, for entering bays and harbours, would have a scale of...
Which statement is true of a position line on a chart?
The use of radar ranges is preferred to radar bearings for position fixing because..
A vessel in initial position 50° 00' N 02° 00' W then steams on a course of 045° for 6 hours at a constant speed of 14 knots. Calculate (using plane sailing) the final latitude.
A vessel steers a course of 007°T for a distance of 391 miles. Find the difference of latitude (to the nearest whole minute) and the departure (to the nearest whole mile).
Calculate the initial course (to the nearest degree) to steer along the great circle between position
34° 22' S 115° 08' E and 11° 51' S 51° 16' E.
Calculate (using plane sailing) the true course to steer to the nearest degree between initial position 32° 46'S 178° 00' E and 32° 00' S 179% 50' W
When the sun and moon are in near conjunction or opposition the tides are called....
You see a Notice to Mariners numbered 3234(T). What does the (T) tell you about this notice?
In an anticyclone in the northern hemisphere, the surface wind circulation is...
When the moon is in quadrature, the tide is....
You are planning a passage across the North Atlantic. The chart most useful for evaluating Ocean Currents and weather probabilities is a...
You see a Notice to Mariners numbered 3235(P). What does the (P) tell you about this notice?
Calculate (using plane sailing) the true course to steer to the nearest degree between initial position 16° 52'S 08° 51' W and 12° 46'S 11° 23' W
How are Secondary Ports chosen to be linked with a particular Standard Port?
A vessel left 42°30'N, 24°25'W, and steamed 245 miles on a course of 050°T. Use plane sailing to find the arrival position.
When choosing objects for position fixing by radar ranges you should, if possible, avoid...
A vessel in initial position 38° 46'S 111° 37 E then steams on a course of 056° for 393 miles. Calculate (using plane sailing) the final latitude to the nearest minute,
A vessel in initial position 40° 30' N 179° 00' E steams due east for 240 miles. Calculate the new longitude to the nearest minute.
Find the difference in longitude between initial position 50° 00' N 02° 00' W and
50° 00' N 01º 25' W
What is the definition of the "nominal" range of a light?
A ship steers 030°T for 120 miles. Find the difference of latitude (to the nearest whole minute) and the departure (to the nearest whole mile).
Find the distance (departure) to the nearest whole mile between initial position
56° 00'N 01°10' E and 56° 00' N 01º 25' W.
What is the usual datum for a port or area from which predicted tidal heights are calculated?
The chart abbreviation "Al FI WR 60 secs" indicates.
At 1130, at apparent noon, the vessel's observed position is 48°56'N, 33°47W. If the course is 016°T at 18kts, find the 1200 position by plane sailing or traverse tables.
Calculate (using plane sailing) the true course to steer to the nearest degree between initial position 52° 00' N 04° 00' E and 52° 20' N 02° 26' E
A vessel in initial position 60° 00' N 04° 00' E steams due west for 240miles. Calculate the new longitude to the nearest minute.
4° 00'W