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OOW older > ECDIS + AIS + VDR > Flashcards

ECDIS + AIS + VDR Flashcards

1
Q

What instruments can be found on the bridge for Navigation?

A 
Gyro & Magnetic Compass
Radar + ARPA
Echo Sounder
GPS
ECDIS
Sextant
Speed Log
Relevant Publications.
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2
Q

What data does AIS provide?

A

Ships ID, Type, Position, Speed, Navigational Status.

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3
Q

What message information types does AIS provide?

A

Static information, Dynamic Information, Voyage Related information.

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4
Q

At what time intervals are these message types updated?

A

Static – 6 minutes, Dynamic – Depends on speed course alteration, Voyage Related – 6 minutes.

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5
Q

What ships must have a VDR installed?

A

All passenger ships and all ships over 3000 GRT.

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6
Q

What time period should VDR’s be operational?

A

24/7

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7
Q

Will VDR’s continue to operate in the event of a power failure?

A

Yes the VDR should operate for at least 2 hours.

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8
Q

How will you know if the VDR has malfunctioned?

A

An alarm will sound.

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9
Q

What does ECDIS stand for?

A

Electronic Chart Display Information System

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10
Q

What is the difference between an ENC and RNC chart?

A

An ENC is a vector chart that has been digitally layered so that data can be more easily added and amended, it does not lose resolution. A raster chart is a digital scan of a paper chart

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11
Q

What navigational instruments directly input data into the ECDIS system?

A

Gyro, GPS, Echo Sounder, Doppler Log, Radar.

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12
Q

What are the Primary Functions of ECDIS?

A

Part 1: Appraisal, Planning / Part 2: Execution, Monitoring

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13
Q

What is the standard which ECDIS systems must meet?

A

IHO – S57

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14
Q

How are ENC’s constructed for ECDIS? list the “Usage Bands” associated.

A 
Overview
General
Coastal
Approaches
Harbour
Berthing
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15
Q

What will the ENC construction format code provide for ECDIS?

A

The chart will be provided with a code, for example GB30132B where GB= Issuing HO, 3= usage band and 0132B = individual cell identifying number.

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16
Q

Using ECDIS does the dotted shaded area represent on an ENC?

A

Dredged area

17
Q

When updating ENC’s within ECDIS you update the current week do you need to update previous weeks?

A

No

18
Q

What should the time be set to on ECDIS?

A

UTC

19
Q

On ECDIS what is the function of the SCAMIN setting?

A

Additional information will disappear on a large scale chart and display is decluttered.

OOW older (13 decks)

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