Reference no: EM133256666
Assignment:
1. What best describes a navigational position line is a part of?
A) segment
B) course line
C) small circle
D) position circle
2. What charted objects should be avoided if there are fixed charted objects available?
A) tangents to points of land
B) Lighthouse
C) beacons
D) buoys
3.What equipment that can be use in taking the distance of a charted objects?
A) compass
B) distance log
C) echo sounder
D) radar
4.What is a line of position (LOP)?
A) fix
B) locus of points
C) range
D) intersection of lines
5.What object that cannot be use as source of position lines?
A) Points of land
B) Vessel at anchor
C) Lighthouse
D) Beacons
6.Where would a navigator write the bearing angle on the line of position?
A) above the line
B) below the line
C) near the waypoint
7.Where would a navigator write the distance on the line of position if the arc is concave downward?
A) outside the arc of the circle
B) inside the arc of the circle
C) near the waypoint
8.Where would a navigator write the distance on the line of position if the arc of the circle is concave upward?
A) outside the arc of the circle
B) inside the arc of the circle
C) near the waypoint
9.Where would a navigator write the ships course on a course line in ...
A) above the line
B) below the line
C) near the waypoint
10.Where would a navigator write the ships course on a course line in ...
A) above the line
B) below the line
C) near the waypoint
11.Where would a navigator write the ships speed on a course line in accordance...
A) above the line
B) below the line
C) near the waypoint
12.Where would a navigator write the ships speed on a course line in accordance...
A) above the line
B) below the line
C) near the waypoint
13.Where would a navigator write the time of observation on the line of position ?
A) above the line
B) below the line
C) near the waypoint
14.Where would a navigator write the time of observation on the line of position if the arc of the circle is concave upward?
A) outside the arc of the circle
B) inside the arc of the circle
C) near the waypoint
15.Where would a navigator write the time of observation on the line of position if the arc of the circle is concave downward?
A) outside the arc of the circle
B) inside the arc of the circle
C) near the waypoint
16.Which LOP would creatè an arc when plotted on the chart?
A) celestial
B) bearing
C) distance
D) Transferred LOP
17.Your ship encountered power failure. Which method will you apply to obtain an LOP?
A) bearing by magnetic compass
B) bearing by gyrocompass
C) range by a lighthouse
D) distance by radar
18.A fix is made up of LOPs. What is the other condition that should be met to call it a fix?
A) Distance LOPs should be taken simultaneously from different objects.
B) Distance LOPs should be taken simultaneously from same object.
C) Bearing LOPs should be parallel with each other.
D) Bearing LOPs should intersect with each other.
19.How to overcome the too long delay between taking bearings?
A) by transferring one or more position lines to allow for the distance travelled between bearings.
B) by rechecking the working or taking fresh bearings.
C) by checking the deviation
D) by checking the variation
20.In obtaining a fix by bearing and distance of different objects, what is considered to be the fix position of the ship?
A) Intersection of the bearing line to transit bearing line
B) Intersection of the two bearing line
C) Intersection of the bearing line with the arc of the circle of position
D) Intersection of the two transit bearing line
21.It is a method in obtaining a fix wherein you will need three bearing observations to get a fix.
A) Combined bearing and range
B) Cocked hat
C) Cross bearing
D) Ranges of Two or More Points
22.It is a method in obtaining a fix wherein you will need two bearing observations from two suitably placed shore objects.
A) Combined bearing and range
B) Cocked hat
C) Cross bearing
D) Ranges of Two or More Points
23.To reduce errors, what side from your ship will you observed first when taking bearing of a charted object?
A) charted objects ahead
B) charted objects abeam from your ship
C) any charted objects sighted regardless of their angles
D) starboard and port quarter side
24.To reduce errors, what side from your ship will you observed first when taking distance of a charted object?
A) charted objects ahead
B) charted objects broad on starboard beam
C) any charted objects sighted regardless of their angles
D) charted objects broad on port beam
25.What do you call for a line which is drawn to connect the two objects which is in one sight from the observer?
A) Transit bearing
B) Circle of position
C) Danger bearing
D) None of the choices
26.What factor that causes the cocked hat which can be eliminated by rechecking the working or taking fresh bearings?
A) Error in plotting
B) Compass error wrongly applied
C) Unknown compass error
D) Poor survey of the area
27.What is the ideal cross bearing angle of the observed charted objects?
A) 30 degrees
B) 60 degrees
C) 90 degrees
D) 120 degrees
28.What is the optimum angular spread of the bearing lines for three objects?
A) 30 degrees
B) 60 degrees
C) 90 degrees
D) 120 degrees
29.What is the optimum angular spread of the bearing lines for two objects?
A) 30 degrees
B) 60 degrees
C) 90 degrees
D) 120 degrees
30.What type of position may obtain if using two or more intersecting lines of position taken nearly the same time?
A) Dead Reckoning
B) Fix
C) Estimated position
D) Piloting
31.You determine your position by taking distance and bearing of a beacon. Your position will be plotted as ______________.
A) Dead reckoning
B) Fix
C) Estimated position
D) Running fix
32.How is dead reckoning obtained?
A) by applying set and drift correction
B) by starting from a fix
C) by advancing LOP
D) by cross bearing
33.How should a current be treated in determining the position in plotting a running fix in an area where there is a determinable current?
A) the current should be ignored
B) the drift should be added to the shipâs speed
C) the set should be applied to the second bearing
D) the course and speed made good should determined and used to advance LOP
34.If Port Townsend is 37 miles away, how long will it take to get there at 4 knots?
A) 9h 25m
B) 9h 15m
C) 2h 28m
D) 6h 06m
35.If the vessel speed is 5kts, how far do she travel in one day?
A) 5 miles
B) 120 miles
C) 48 miles
D) 60 miles
36.In calculating a running fix position, what is the minimum number of fixed objects that are needed to take your LOPs from?
A) 1
B) 2
C) 3
D) 4
37.The following are factors that makes Dead Reckoning erroneous. Which is not included in the group?
A) Bad Steering
B) Current
C) Deviation Errors
D) Variation
38.Under what situation is the 30 - 60 minutes proper time intervals of plotting the Dead Reckoning?
A) open seas
B) approaches
C) dropping of anchor
D) at the rivers or bends
39.Under what situation is the 6 - 12 minutes proper time intervals of plotting the Dead Reckoning?
A) Daytime situation only
B) Nighttime situation only
C) Tight or close situations
D) During coastal navigation
40.What is the best description of dead reckoning?
A) A shipwreck caused by poor navigation.
B) A line plotted on the chart based on ship's speed.
C) An exact location of a ship based on multiple bearings.
D) An approximate position based on the last known position
41.What position is obtained by crossing lines of position taken at different times and advanced to a common time?
A) running fix position
B) advanced position
C) DR position
D) fix position
42.What type of position obtained by applying only your vessels course and ...
A) Dead reckoning
B) Fix
C) Estimated position
D) Running fix
43.What will you need to plot a DR position?
A) distance run
B) running fix
C) set and drift
D) wind direction
44.Which position includes the effects of wind and current?
A) estimated position
B) assumed position
C) DR position
D) fix position
45.Which position includes the effects of wind and current?
A) Dead reckoning
B) Fix
C) Estimated position
D) Running fix
46.Which statement is true regarding danger bearing?
A) If it lies to port side, it should be marked "Not More Than".
B) If it lies to port side, it should be marked "Not Less Than".
C) If it is dead ahead, it should be marked "Not Less Than".
D) If it lies to starboard side, it should be marked "Not More Than".
47.Which statement is true regarding danger bearing?
A) If it lies to starboard, it should be marked "Not More Than".
B) If it lies to starboard, it should be marked "Not Less Than".
C) If it is dead ahead, it should be marked "Not Less Than".
D) If it lies to port side, it should be marked "Not Less Than".
48.You travel 12 miles in 3 hours 40 minutes, what was your average speed?
A) 3.27kts.
B) 2.37kts.
C) 3.53kts.
D) 4.0kts.
49.It is the horizontal movement of the water.
A) Current
B) SetÂ
C) Drift
D) Wind
50.It is the direction toward which the current is flowing, measured in degrees.
A) Set
B) Drift -
C) Wind
D) Leeway
51.It is the motion of a vessel due to that component of the wind vector perpendicular to the vesselâs track.
A) Leeway
B) DriftÂ
C) Set
D) Current
52.It is the intended speed with respect to the earth, taking into consideration the effect of known or predicted current.
A) Speed of Advance
B) Speed Made Good
C) Speed Over The Ground
D) Course Over The Ground -
53.It is the resultant direction from a given point of departure to a subsequent position
A) Course Made Good -
B) Course Over The Ground
C) Speed of Advance
D) Speed Made Good
54.It is the actual path of the vessel with respect to the earth.
A) Course Made Good
B) Course Over The Ground
C) Speed of Advance
D) Speed Made Good -
55.It is the velocity of the flow, normally measured in knots.
A) Drift
B) Leeway
C) Course Made Good
D) Course Over The Ground
56.It is the motion of a vessel due to that component of the wind vector perpendicular to the vesselâs track.
A) Leeway
B) DriftÂ
C) Set
D) Current
57.It is the horizontal movement of the water.
A) Current
B) SetÂ
C) Drift
D) Wind
58.What you called in determining a position by plotting courses and speeds from a known position.
A) Dead reckoning
B) Position fix
C) Running fix
D) Transit fix
59.Its another way to combine three compass bearings to obtain a position fix.
A) SNELLIUS CONSTRUCTION:
B) ESTIMATED POSITION
C) LINE OF POSITION
D) DEAD RECKONING:
60.WHAT IS TIDAL STREAM?
A) are water movements caused by forces of gravity between the earth, the moon and the sun, and to a much lesser extent other planets.
B) Its is the horizontal movement of the water.
C) It is the direction toward which the current is flowing, measured in degrees
D) It is the velocity of the flow, normally measured in knots