Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

ENC and ECDIS Quiz LONG QUIZ 1 NAV 6

Total questions: 30

Worksheet time: 18mins

Name
Class
Date
1.

What does ENC stand for?

a)

Electronic Nautical Chart

b)

Electronic Navigational Chart

c)

Electronic Navigation Code

d)

Electronic Nautical Cell

2.

Which organization is responsible for technical standards of ENCs?

a)

IMO

b)

IHO

c)

SOLAS

d)

STCW

3.

What standard ensures ENC protection from unauthorized access?

a)

S-57

b)

S-58

c)

S-63

d)

S-52

4.

Which ENC chart type is used for harbor navigation?

a)

Coastal Charts

b)

Approach Charts

c)

Harbor (Port) Charts

d)

General Charts

5.

ENC data is ________ in nature.

a)

Raster-based

b)

Vector-based

c)

Paper-based

d)

Satellite-based

6.

Which ENC usage band is for oceanic crossings and long voyages?

a)

Harbor Charts

b)

Coastal Charts

c)

Overview Charts

d)

Approach Charts

7.

ENC data provides:

a)

Static, outdated information

b)

Real-time updates and detailed data

c)

Information without navigational aids

d)

None of the above

8.

What is the advantage of ENC over paper charts?

a)

No need for updates

b)

Interactive and scalable features

c)

Can only be used offline

d)

Provides only geographic boundaries

9.

Which is NOT a primary ENC data layer?

a)

Depth Contours

b)

Boundaries

c)

Navigational Aids

d)

Landmarks

10.

What identifier shows the usage band of an ENC cell?

a)

First character

b)

Second character

c)

Third character

d)

Last character

11.

Why is data accuracy important in ECDIS?

a)

It improves vessel design

b)

It ensures safe navigation and decision-making

c)

It eliminates the need for lookouts

d)

It removes the need for radar

12.

CATZOC is used to indicate:

a)

ENC file format

b)

ENC encryption method

c)

Reliability of ENC data

d)

Type of navigational symbols

13.

Which is NOT a challenge in maintaining ECDIS accuracy?

a)

Data latency

b)

Human error

c)

Automated integration

d)

Equipment limitations

14.

Regular ENC updates ensure:

a)

Vessel speed improvement

b)

Accurate navigational data

c)

Reduced fuel consumption

d)

Automatic route planning

15.

What is a way to mitigate risks of inaccurate ENC data?

a)

Ignore alarms

b)

Cross-check with radar and GPS

c)

Use only paper charts

d)

Avoid using ECDIS

16.

What does CATZOC Category A1 represent?

a)

Low-quality survey data

b)

Very high-quality survey data

c)

ENC encryption code

d)

None of the above

17.

Which of the following is used to verify ENC data sources?

a)

CATZOC

b)

S-63

c)

Routine checks

d)

SOLAS Chapter V

18.

Data accuracy in ECDIS depends mainly on:

a)

Sensor integration and updates

b)

Paper chart backups

c)

Crew rest hours

d)

Route planning only

19.

Which organization sets performance standards for ECDIS?

a)

SOLAS

b)

IMO

c)

IHO

d)

STCW

20.

Which standard outlines ENC display symbols and colors?

a)

S-57

b)

S-58

c)

S-63

d)

S-52

21.

One main advantage of ECDIS is:

a)

Eliminates need for officers

b)

Enhances situational awareness

c)

Replaces AIS system

d)

Reduces draught of vessel

22.

Which is a danger of over-reliance on ECDIS?

a)

Improved efficiency

b)

Increased navigational skills

c)

Reduced situational awareness

d)

Compliance with regulations

23.

Which system integration enhances ECDIS performance?

a)

GPS, AIS, and Radar

b)

Gyro, Fire alarms, and Pumps

c)

Engines, Power, and Ballast

d)

None of the above

24.

Which of the following is NOT part of ECDIS IMO requirements?

a)

Continuous position fixing

b)

Chart updating capability

c)

Integration with GPS

d)

Controlling ballast water

25.

Which statement is TRUE about ECDIS?

a)

It completely removes the need for human watchkeeping

b)

It supports route planning and hazard warnings

c)

It functions without charts

d)

It is optional under SOLAS

26.

26 A vessel has a draft of 9.0 m, with a required UKC (Under Keel Clearance) of 1.5 m and an estimated squat of 0.5 m.

· Calculate the Safety Depth (SD) and the Shallow Contour (SHC).

(a)  

27.

A vessel has a draft of 8.0 m, with a required UKC of 1.0 m and a squat of 1.0 m. Calculate the Deep Contour (DC).

(a)  

28.

The charted depth is 18.20 meters with Zone of confidence of C (2.0 +5%d) Calculate for the corrected depth using catzoc ?

(a)  

29.

The charted depth is 15.60 meters with Zone of confidence of B (1.0 +2%d) Calculate for the corrected depth using catzoc ?

(a)  

30.

The charted depth is 12.10 meters with Zone of confidence of A (0.50 +1%d) Calculate for the corrected depth using catzoc ?

(a)