問題一覧
1
What is the term for minimum clearance available between the deepest point on the vessel and the bottom in still water?
Under keel clearance
2
Which condition that a vessel will steer more easily?
When she is trimmed by the stern
3
The following tools set limitations to ship's track in order to avoid accidents EXCEPT
Critical objects
4
What should be the base of the ECDIS grounding alarm?
Chart information
5
Cross-track limit is used on the following EXCEPT
Stray both sides of the track
6
Which function you can activate that floats with the ship and will provide a visual indication that your ship is on course or off-course?
Parallel index lines
7
What is/are the most important safety features found in ECDIS?
Safety contour
8
Which triggers the alarm when the vessel is approaching a shallow water?
Safety contour
9
Who has the authority to approved a voyage plan?
Master
10
What ECDIS tool is highlighting a given safety contour based on safety depth?
Limiting danger line
11
Where does a voyage plan should start and end?
Berth to berth
12
Below are factors that affect a vessel's turn EXCEPT
Available depth contour of water
13
When using radar for fixing ship position, which medium is best and more accurate?
two or more ranges
14
Many factors will affect the vessel's maneuverability EXCEPT
Corrosion of propeller
15
Which tool allows the ECDIS to scan ahead of the ship to a distance set by the user?
User-defined distance
16
Which function alerts the observer beforehand before shallow coastal water?
Anti-grounding
17
What is the point of execution which a vessel must start her course alteration to keep on the next track?
Wheel over point
18
What is defined as the distance traveled by a vessel after giving the wheel over and before commencing turn?
Head reach
19
A ship with a speed of 17 knots and a turning radius of 0.132 miles, based on the rate of turn formula, what is the rate of turn?
123 deg per minute
20
What stage is collecting information and validating all relevant information?
Appraisal
21
Which statement is true regarding the dead reckoning system in ECDIS?
position will likely become less accurate
22
What dangers are highlighted by RNC during route scanning?
User defined
23
In route planning the navigator wishes to specify an alarm for a sharp curve, what is the alarm?
Critical point alarm
24
What facility acts as a final layer of safety should a navigational danger be missed by the visual check or route scan?
Anti-grounding function
25
Which factor below is NOT correct in voyage planning?
Any routing constraints imposed by the charterer on the ship
26
Which of the following statement is incorrect regarding recording and counter-checking of ship position on ECDIS?
it is required by the pilot and VTS
27
What is the purpose of the look-ahead feature in ECDIS?
to alarm incoming lower water depth
28
Which of the following statement is true relating to the maneuvering characteristics of a vessel?
The position of the pivot point will vary performance
29
What was the vector in a radar-arpa and ais target represents?
course and speed of target
30
What stage is ensuring that the voyage plan is being followed?
Execution
31
What is the alarm on ECDIS when it detects an obstacle closer than the set limit?
Grounding alarm
32
Which tool the navigator will easily detect in case the ship is drifting towards a coastline caused by current?
PIL
33
Which statement is not TRUE in voyage planning?
Voyage plan should be presented to port authorities
34
What is the biggest disadvantage of ECDIS?
limited size of display
35
The mandatory requirement of navigational equipment to be connected to ECDIS is EXCEPT
depth measuring device
36
Traditional methods of position fixing includes the following EXCEPT
using a satellite-based system
37
What system does not work with the route scanning process?
Raster Navigational Chart
38
When the d-GPS is absent in the ECDIS system, which system it will automatically change?
dead reackoning
39
Which function in ECDIS can be used to label ENC chart features and its main purpose is the de-clutter the chart display?
Scale minimum
40
When browsing ENC, what is the shortest way to return the display to normal?
Best chart
41
Which of the following is NOT included in ECDIS standard display?
Scale bars labels
42
ECDIS base display consist of the following EXCEPT
Chart boundary
43
Which user object with point geometry such as buoy or obstruction?
Symbol
44
Which tool allows the user to get an alarm ahead of ownship of any danger?
Anti-grounding function
45
What is created when using a special ECDIS graphic editor?
Mariner's Note
46
What tool is useful to insert text, draw lines and highlight areas for passage planning?
Mariner's overlay
47
user entered depth that will affect the appearance of spot soundings
deep contour
48
ECDIS default value of safety contour
30m
49
reduce the amount of information displayed on ecdis
scamin
50
limit is used to control the ships deviation from planned track.
XTE
51
sole purpose is to portray spot soundings in grey and white areas
safety depth
52
area where ownship will experience squat
deep contour
53
highlight the gradients of seabed
shallow contour
54
this value should not be less than the shallow contour setting value + safety margin
safety contour
55
to measure the angle of an object
EBL
56
to measure the distance of an object
VRM
57
at any point indicates the latitude and longitude
marker position
58
emphasizes deep and shallow areas by use of contrast color using this mode
shallow contour
59
giving an adequate safety allowance for the dynamic draft of the vessel
safety contour
60
function primarily used for the route checking
safety depth