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Flashcards in CAPTAIN'S LICENSE RADIOTELEPHONE Deck (20)
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1

The radiotelephone required by the "Vessel Bridge-to-Bridge Radiotelephone Act is for the exclusive use of

A) The Master or person in charge of the vessel
B) A person designated by the Master
C) A person on Board to pilot the vessel
D) All of the above

D

2

The VHF radiotelephone frequency designated to be used only to transmit or receive information pertaining to the safe navigation of a vessel is

A) 156.8 MHz (channel 16)
B) 156.7 MHz (channel 14)
C) 156.65 MHz (channel 13)
D) 156.6 MHz (channel 12)

C

3

What is the minimum size power-driven vessel, not engaged in towing, required to comply with the vessel bridge-to-bridge radiotelephone regulations?

A) 50 meters
B) 25 meters
C) 20 meters
D) 12 meters

C

4

The height of a VHF radio antenna is more important than the power output wattage of the radio because

A) VHF communications are basically "line of sight"
B) the air is more dense the higher you go
C) salt water is a poor conductor of sound
D) sea water absorbs the radiated energy

A

5

You have just tried calling another vessel on the VHF and they have not replied. How long should you wait before calling that station again?

A) one minute
B) two minutes
C) five minutes
D) seven minutes

B

6

While underway, if you are required to have a radiotelephone, you must maintain a continuous listening watch on channel

A) 6 (156.3 MHz)
B) 12 (156.6 MHz)
C) 14 (156.7 MHz)
D) 16 (156.8 MHz)

D

7

The national distress, safety, and calling frequency is channel

A) 13
B) 16
C) 18
D) 22

B

8

If you wished to transmit a message by voice concerning the safety of navigation, you would preface it by the word

A) Mayday
B) Pan-pan
C) Securité
D) Safety

C

9

The radiotelephone safety message urgently concerned with safety of a person would be prefixed by the word

A) Mayday
B) Pan
C) Safety
D) Interco

B

10

A Cost Guard radiotelephone message about an aid to navigation that is off station is preceded by the word

A) "PAN-PAN"
B) "MAYDAY"
C) "SOS"
D) "SECURITY"

D

11

In radiotelephone communications, the prefix PAN-PAN indicates that

A) a ship is threatened by grave and imminent danger and requests immediate assistance
B) a calling station has an urgent message about the safety of a person
C) the message following the prefix will be about the safety of navigation
D) the message following is a meteorological warning

B

12

You receive a call from the U.S. Coast Guard addressed to all stations. The call begins with the words "Pan-Pan" (3 times). Which type of emergency signal would this be?

A) safety signal
B) urgency signal
C) distress signal
D) red alert signal

B

13

Which word is an international distress signal when transmitted by radiotelephone?

A) Securite
B) Mayday
C) Breaker
D) Pan

B

14

If you are transmitting a distress message by radiotelephone you should

A) use English language
B) always use the International Code
C) preface it by the word "interco"
D) follow the transmission with the radio alarm signal

A

15

All towing vessels of 26 feet or longer while navigating are required to carry what item?

A) at least two lifeboats
B) a radiotelephone
C) a radio direction finder
D) none of the above

B

16

The reception of weak radio signals may be improved by "opening up" the squelch control. What is the normal setting of the squelch control?

A) Adjust the squelch control until the noise (static) can be heard, then adjust it slightly in the opposite direction until the noise stops
B) Completely closed with the volume at the highest level
C) Completely open with the volume at the lowest level
D) None of the above

A

17

Which vessels must comply with the vessel bridge-to-bridge radiophone regulations while navigating?

A) Towing vessels 25 feet in length or less
B) Passenger vessels of 100 gross tons or greater, carrying one or more passengers for hire
C) Power-driven vessels 12 meters or less in length
D) All of the above

B

18

Which system is most likely to be affected by atmospheric disturbances?

A) MF/HF radiotelephone
B) VHF DSC
C) INMARSAT
D) Safety NET

A

19

What is the minimum size power-driven vessel, not engaged in towing, required to comply with the vessel bridge-to-bridge radiotelephone regulations?

A) 50 meters
B) 25 meters
C) 20 meters
D) 12 meters

C

20

All VHF marine band radios operate in the simplex mode, which means that…

A) Only one person may talk at a time
B) Only two persons may talk at a time
C) The radio only transmits
D) The radio only receives

A