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OIC-NW MARINA REVIEWER / QUIZ COMPETENCE 4 – PART 8

22 March, 2023
REVIEWER

COMPETENCE 4 – Use of ECDIS to Maintain Safety of Navigation

Results

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#1. While underway, a vessel over 100,000 gross tons with an automatic identification systems (AIS) is expected to broadcast all of the following information every 1 to 10 seconds EXCEPT:

rate of turn

rate of turn

name of vessel

name of vessel

navigational status

navigational status

ship's heading

ship's heading

Incorrect!

Next

#2. Which of the following must an ECDIS system be able to perform?

Conversion of "graphical coordinates" to "display coordinates"

Conversion of "graphical coordinates" to "display coordinates"

Transformation of local datum to WGS-'84 datum

Transformation of local datum to WGS-'84 datum

Calculation of true azimuth and distance between two geographical points

Calculation of true azimuth and distance between two geographical points

All of the choices

All of the choices

Incorrect!

Next

#3. Which of the following reference systems affect the information on ECDIS?

Geodetic system used in the creation of the chart data

Geodetic system used in the creation of the chart data

Draft of vessel entered into sounder that is connected to ECDIS

Draft of vessel entered into sounder that is connected to ECDIS

Physical location of scanner for ARPA connected to ECDIS

Physical location of scanner for ARPA connected to ECDIS

All of the choices

All of the choices

Incorrect!

Next

#4. Which of the following units of measure will appear on the ECDIS chart display?

position

position

depth

depth

height

height

all of the above

all of the above

Incorrect!

Next

#5. With radar overlay on ECDIS, what can be the cause(s) of radar echoes not matching the charted position of a fixed object?

Either the Chart Display Category is in Base Display or the scale is so small that it is showing Layers Lost

Either the Chart Display Category is in Base Display or the scale is so small that it is showing Layers Lost

Improper coordinate setting of radar antenna, conning station or ship’s dimensions

Improper coordinate setting of radar antenna, conning station or ship’s dimensions

Incorrect input of ship’s position fixing device (GPS)

Incorrect input of ship’s position fixing device (GPS)

All of the choices

All of the choices

Incorrect!

Next

#6. Which of the following statements best describes manual chart corrections for ECDIS?

Manual calculation are computed through the chart.

Manual calculation are computed through the chart.

Manual corrections are included in the CD that vessels receive periodically from NGA(formerly NIMA).

Manual corrections are included in the CD that vessels receive periodically from NGA(formerly NIMA).

Manual corrections constitute user information layers, added by the mariner, with no automatic record of installation.

Manual corrections constitute user information layers, added by the mariner, with no automatic record of installation.

Manual corrections are feed through email by the company.

Manual corrections are feed through email by the company.

Incorrect!

Next

#7. Which of the following statements is TRUE regarding automatic identification systems (AIS)?

AIS will not provide information on another vessel if that vessel is indistinguishable in radar sea clutter.

AIS will not provide information on another vessel if that vessel is indistinguishable in radar sea clutter.

AIS can be relied upon as the sole means to determine risk of collision and safe speed.

AIS can be relied upon as the sole means to determine risk of collision and safe speed.

AIS is designed to replace ARPA, maneuvering boards, and visual bearings as a means to ascertain the risk of collision.

AIS is designed to replace ARPA, maneuvering boards, and visual bearings as a means to ascertain the risk of collision.

AIS provides the other vessel's identity, dimensions and navigational status regardless of visibility.

AIS provides the other vessel's identity, dimensions and navigational status regardless of visibility.

Incorrect!

Next

#8. Which of the following is mandatory equipment that must be connected to ECDIS?

Radar/ARPA

Radar/ARPA

Positional navigation sensors (e.g., GPS)

Positional navigation sensors (e.g., GPS)

Track control (autopilot)

Track control (autopilot)

AIS

AIS

Incorrect!

Next

#9. Which of the following is a mandatory orientation and mode of display required by the performance standard for ECDIS?

Course-up orientation and True motion mode

Course-up orientation and True motion mode

North-up orientation and Relative motion mode

North-up orientation and Relative motion mode

North-up orientation and True motion mode

North-up orientation and True motion mode

Course-up orientation and Relative motion mode

Course-up orientation and Relative motion mode

Incorrect!

Next

#10. With respect to automatic identification systems (AIS) which of the following information is broadcast every one to ten seconds?

Vessel's draft

Vessel's draft

Air Draft

Air Draft

Navigational status

Navigational status

Dimensions of vessel

Dimensions of vessel

Incorrect!

Next

#11. Which of the following must the electronic chart of an ECDIS display, as required by IMO/IHO?

Ferry routes

Ferry routes

Hydrography

Hydrography

Regulatory boundaries

Regulatory boundaries

All of the choices

All of the choices

Incorrect!

Next

#12. Which of the following reflects the statement that ECDIS only supports the mariner in performing navigational tasks?

Determine true bearing and distance between two geographical points

Determine true bearing and distance between two geographical points

Without official updated ENC data for the intended voyage, ECDIS does not replace paper charts

Without official updated ENC data for the intended voyage, ECDIS does not replace paper charts

Make navigation more efficient

Make navigation more efficient

All of the choices

All of the choices

Incorrect!

Next

#13. With respect to automatic identification systems (AIS), which information is expected to be broadcast every 1 to 10 seconds?

Name of ship

Name of ship

Ship's heading

Ship's heading

IMO number

IMO number

Vessel's draft

Vessel's draft

Incorrect!

Next

#14. Which of the following mode of operation for ECDIS has been recently approved by the IMO under Resolution MSC.86(7)?

RCDS

RCDS

RSDC

RSDC

DSRC

DSRC

NEC

NEC

Incorrect!

Finish

There are 10 questions for the actual examination for Competence 4 for OIC-NW with a passing rate of 70%. This means that you are only allowed to make 3 mistakes.

DISCLAIMER

The questionnaires contained in this “reviewer” are extracted from the post released by MARINA on their official website and other review materials. Please note that Seaman Kowts is not affiliated with, endorsed by, or connected to the official website of MARINA. The information provided on this website is for general informational and educational purposes only and should not be relied upon as official or authoritative. If you require official information or services, please visit the official website or any relevant review center. We do not assume any responsibility or liability for any consequences resulting from the use of information or services provided on this website.

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