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1With the squelch mode on the VHF__________

Another channel is chosen

Undesirable noise is suppressed

Range is increased

Range is fixed

2A polarisation of a radio wave is determined by a__________

Length of the aerial

Position of the aerial

Height of the aerial

Width of the aerial

3A VHF transmission range is mainly determined by__________

The right position of the squelch‐adjustment

The height of the aerial

The moment of propagation

Length of the aerial

4Which radio frequency/channels are reserved for emergency communications?

2128 kHz/VHF channel 16

2182 kHz/VHF channel 6

2188 kHz/VHF channel 8

2182 kHz/VHF channel 16

5Wire antenna of 12 meters long is probably ___________.

A MF/HF‐antenna

A VHS‐antenna

An Inmarsat‐antenna

None of the above

6With the DCS format specified geographical area call besides a reference position the number of the full degree difference in longitude and latitude must be fed in:

All of the above

Westerly and northerly direction

Easterly and northerly direction

Southerly and easterly direction

7With the squelch mode on the VHF:

Another channel is choosen

Range is increased

Any of the above

Undesirable noises is suppressed

8Which VHF channel should be used for internship navigation safety communications?

Ch. 16

Ch. 13

Ch. 12

Ch. 06

9 You are making ship‐to‐shore telephone calls on VHF. You should use the:

Emergency broadcast services

VHF‐FM service

Coastal harbor service

High seas service

10What do you call the communication within the ships emergency organization or communication within the shore emergency response team?

External

Shore to ship communication

Shipboard communication

Internal communication

11 Calls, announcement and conversations from one station to another on board should be as brief as possible and consistent with _______ .

Good message

Intelligibility

Understandable

Loud

12What is/are the content of table #1 of radiotelephony procedures? I. Nature of distress in code from the International code of signals II. Phonetic alphabets and figure spelling III. Position in code from the International code of signals

I only

III only

I, II & III

II only

13What is/are the content of table #2 of radiotelephony procedures? I. Nature of distress in code from the International code of signals II. Phonetic alphabets and figure spelling III. Position in code from the International code of signals

I only

II only

III only

I, II & III

14Vessel with an EPIRB, you must check _________.

If it is attached properly to e.g. The railing with the required line

The working of the charger and check the loaded condition of the battery

The date that the battery must be replaced

Any of the above

15What are the basic rules in training communications? I. Know what to say II. Get your idea across. III. Trainees must know you

II only

I and II

I only

I, II and III

16Which radio frequency/channels are reserved for emergency communications?

2128 kHz/VHF channel 16

2182 kHz/VHF channel 6

2188 kHz/VHF channel 8

2182 kHz/VHF channel 16

17 You are underway and hear a vessel continuously sounding her fog whistle. This indicates the Other vessel:

Desire to communicate by radio

Desires a pilot

Is aground

Is in distress

18What is/are the content of table #3 of radiotelephony procedures? I. Nature of distress in code from the International code of signals II. Phonetic alphabets and figure spelling III. Position in code from the International code of signals

I only

II only

III only

I, II & III

19Within territorial waters the use of transmitters is prohibited. In general this does not apply for:

MF‐equipment

HF‐equipment

Inmarsat‐C equipment

All of the above

20 You are approaching a port when you see three lights in a vertical line. The upper and lower are green and the middle white. What does this mean?

A vessel may proceed only when it has received specific orders to do so.

You may proceed with caution.

Vessels may proceed. One way traffic

Vessels may proceed. Two way traffic.

21 You receive via the 8 MHz a DCS distress alert. The received DCS message is however distorted. The MMSI as well as the position are illegible. After listening at the 8 MHz telephone distress frequency, nothing is heard. This is because:

You should have listened on the 2182 kHz

Telephone signals in the same frequency band are generally weaker than DCS signals

Choices presented are not possible

First an acknowledgement of a coastguard station must be received via the 8MHz

22Acoustic feedback can arise__________

Because outside noise is amplified by the loudspeaker in the microphone

Because the volume adjustment of the speaker is too high

Because the loudspeaker works as a microphone

Because the battery is strong

23When onboard channel 16 is used for a shore radio‐connection, you always work__________.

Duplex

Semi‐duplex

Triplex

Simplex

24Automatic amplifier regulation is used to__________

Reduce distortion of the strong incoming signal

Reduce noise if there is no signal

Increase incoming signal

Reduce distortion of weak incoming signals

25 You received a distress alert on HF Radio. What should you do?

Wait three minutes and if no acknowledgement is heard from a coast station you should relay the alert

Relay the message immediately on 2182 kHz

No response is necessary providing the vessel is more than 24 hours away

Acknowledge receipt

26With a distress alert via an Inmarsat‐A terminal it is recommended to use the telex‐mode because:

The telephone can cause misunderstanding through language problems or wrong interpretations

All vessels in the Ocean Region concerned can read it

The telephone is slower and more prone to interference

None of the above

27With the use of INMARSAT and digital selective calling, distress alerts can be received:

With reliability

With the NAVTEX

With ambiguity

Manually

28Which wave length applies to a frequency of 2000 kHz?

15 meters

1500 meters

150 meters

200 mtr

29What is the maximum range of a VHF radio‐set from ship to ship at sea.

2 Nautical Miles

200 Nautical Miles

20 Nautical Miles

2000 Nautical miles

30 The legal type VHF‐antenna has a length of__________.

3.5 meters

1 meter

7 meters

10 meters

31 The typical ?daylight‐frequencies? For long distance transmission are located in the__________

4 or 6 MHz‐band

16 or 22 MHz‐band

24 ‐ 26 MHz‐band

8 or 12 MHz‐band

32 The squelch on the control panel of a VHF‐sat serves to__________

Adjust the sound level of the signal received

Adjust the threshold level for admitting signals and refusing noise

Adjust the proportion of atmospheric noise in receiving the spoken word

Adjust the volume

33 Before a mariphone is installed on board, __________

A license must be issued

Contribution must be paid

A letter of registration must be applied for

The ship must pass the port state control inspection

34 Squelch mode serves to suppress__________

Noise in absence of an FM‐signal

Noise in speech‐breaks in an SSB‐signal

Background noise in receiving a weak FM‐signal

Noise in transmission

35What is meant by frequency?

Time lapse of vibrations.

Number of vibrations

Number of vibrations per unit of time

Time of propagation

36 The sound‐level of the speaker on a MF/HF radiotelephony installation is adjusted through _________.

RF‐Gain

Can not be adjusted

Trickle knob

AF‐Gain

37What is the recommended connection between antenna and VHF?

Three vein cable connection

Coax cable connection

Band cable connection

Single vein cable connection

38What should you include in the body of a radio message seeking advice for a medical emergency at sea? I. The name and owner of the ship, its position and destination II. The patients name and next of kin III. The patients age, sex, nature of the emergency

I only

II & III

I & III

I, II & III

39With all the responsibilities and work his position entails, the Master needs the _____ from his staffs? I. Acceptance and recognition II. Respect and compliance III. Support

I, II & III

I only

I & II

II & III

Long distance communication in the HF‐bands depends on__________

Ground wave

Satellites

Ionisation layers

Dimmer setting

41Which wave length applies to a frequency of 2000 kHz?

1500 meters

15 meters

150 meters

200 mtr

42What is the maximum range of a VHF radio‐set from ship to ship at sea.

2 Nautical Miles

20 Nautical Miles

2000 Nautical miles

200 Nautical Miles

43Which radio frequency/channels are reserved for emergency communications?

2182 kHz/VHF channel 16

2128 kHz/VHF channel 16

2182 kHz/VHF channel 6

2188 kHz/VHF channel 8

44 The legal type VHF‐antenna has a length of__________.

3.5 meters

7 meters

10 meters

1 meter

45 The typical “daylight‐frequencies” for long distance transmission are located in the__________

4 or 6 MHz‐band

8 or 12 MHz‐band

16 or 22 MHz‐band

24 ‐ 26 MHz‐band

46 You hear on radiotelephone the word “SECURITE” spoken three times. This indicated that

A message of an urgent nature about the safety of a ship will follow

The sender is in distress and requests immediate assistance

You should secure your radiotelephone

A message about the safety of navigation will follow

47Wire antenna of 12 meters long is probably ___________.

A MF/HF‐antenna

A VHS‐antenna

An Inmarsat‐antenna

None of the above

48 The squelch on the control panel of a VHF‐sat serves to__________

Adjust the sound level of the signal received

Adjust the threshold level for admitting signals and refusing noise

Adjust the proportion of atmospheric noise in receiving the spoken word

Adjust the volume

49With the DCS format specified geographical area call besides a reference position the number of the full degree difference in longitude and latitude must be fed in:

All of the above

Easterly and northerly direction

Southerly and easterly direction

Westerly and northerly direction

50With the VHF on board there has to be:

A license

An updated copy of the “Wet op de telecomuniactievoorzieningen”

A document showing that the radio equipment has been firm or person

None of the above

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