Theory Flashcards

1
Q

How many pieces of SART must a ship of 5600 tons gross tonnage must be provided with?

A

A. 0
B. 1
C. 2
D. 3
E. 6

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2
Q

How many pieces of portable GMDSS VHF transceivers must a ship of 450 tons gross tonnage be provided with?

A

A. 0
B. 1
C. 2
D. 3
E. 6

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3
Q

How many pieces of portable GMDSS VHF transceivers must a ship of 1700 tons gross tonnage be provided with?

A

A. 0
B. 1
C. 2
D. 3
E. 6

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4
Q

Which channel is used for ship-to-ship alerting on the VHF band in the GMDSS system?

A

13
16
6
70
76

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5
Q

Which radioequipment is not necessary for the ships sailing in the sea area A4?

A

406 MHz EPIRB float free
Inmarsat SES
Navtex receiver
Telex (NBDP)
VHF DSC watch receiver

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6
Q

Which radioequipment is not necessary for the ships sailing in the sea area A2?

A

Enhanced Group Call equipment
MF watch receiver dedicated to 2187.5 kHz
Satellite EPIRB
Telex (NBDP)
VHF DSC watch receiver

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7
Q

Which VHF channel does the VHF emergency beacon use?

A

13
16
6
70
76

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8
Q

Your ship received a Distress relay on DSC VHF channel 70, on what channel would you reply?

A

CH 06
CH 12
CH 13
CH 16
CH 70

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9
Q

Communications with an emission of J3E would typically have a channel spacing of:

A

0.3 Hz
0.5 Hz
2.8 Hz
3.0 Hz
6.0 Hz

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10
Q

Urgency signal consists of the word:

A

MAY DAY
PAN PAN
PRU-DONCE
SECURITE
URGENCY

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11
Q

Which kind of station can have MMSI number 002184000?

A

A concrete coast station
A concrete ship station
Group of coast stations
Group of ships
No one

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12
Q

Nhich kind of station can have MMSI number 027954000?

A

A concrete coast station
A concrete ship station
Group of coast stations
Group of ships
No one

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13
Q

Which frequency is assigned for transmitting DSC distress alert on the MF band?

A

2177 kHz
2182 kHz
2187.5 kHz
2189.5 kHZ
490 kHz

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14
Q

Nhich frequency can be used for MF DSC ship to ship calling for general communication?

A

2174.5 kHz
2177 kHz
2182 kHz
2187.5 kHz
2189 kHz

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15
Q

How many NAVAREAS are there in the world?

A

12
14
16
21
24

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16
Q

Which eqaution shows right ratio between the frequency (f) and wavelength (Lambda) of radio wave?

A

f = C x Lambda
f = C x 6,28 x Lambda
f = C / 6.28 x Lambda
f = C / Lambda
f = Lambda / C

17
Q

Are VHE radio waves reflected by the ionosphere?

A

By all layers
By D-layer and E-layer
Not reflected
Only by D-layer
Only by F-layer

18
Q

What is the approximate range of MF radio waves during the day tine?

A

1200 NM
150 NM
2500 NM
30 NM
600 NM

19
Q

What is the wavelength, if the frequency is 6 MHz?

A

0.2 m
18 m
180 m
50 m
500 m

20
Q

What is the frequency, if the wavelenght is 7.5 m?

A

22.5 MHz
25 MHz
2500 MHz
40 MHz
4000 MHz

21
Q

The abbreviation of telephony mode of radiation using phase modulation:

A

F1B
F3E
G3E
P3E
R3E

22
Q

The abbriveation of telephony mode of radiation using amplitude modulation single sideband, suppresed carrier:

A

A3E
H3E
J2B
J3E
R3E

23
Q

The abbriveation of telephony mode of radiation using amplitude modulation single sideband, full carrier:

A

A3E
H3E
J2B
J3E
R3E

24
Q

The abbriveation of telephony mode of radiation using amplitude modulation (narrow band direct printing) :

A

F1B
F1C
F3E
G1D
G3E

25
Q

Should lead batteries and HI-Cd batteries be located in the same battery room?

A

No
Yes
Yes, in case of maintenance free lead batteries
Yes, in case the battery room has compulsory ventilation
Yes, in case the battery room large enough

26
Q

What is the minimum operation time of reserve source of energy on ships without an emergency energy source?

A

1 hour
12 hours
24 hours
48 hours
6 hours

27
Q

What is the minimum operation time of reserve source of energy on ships with an emergency energy source?

A

1 hour
12 hours
24 hours
48 hours
6 hours

28
Q

What is the total voltage and capacity of two 12V batteries coupled in series if each battery has capacity 100 Ah?

A

12V 100Ah
12V 200Ah
24V 100Ah
24V 200Ah
24V 50Ah

29
Q

Since 1st July 1997 every passenger ship shall be additionally provided with:

A

HF MSI reciever
Inmarsat-E EPIRB
Second Navtex Reciever
Second VHF station with DSC modem
VHF staton on aeronautical frequencies 121.5 MHz and 123.1 MHz

30
Q

Which of the following frequencies is used internationally for ship-to-shore routine calls on the MF band?

A

2174.5 KHz
2177 KHz
2182 KHz
2187.5 KHz
2189.5 KHz

31
Q

On which HF DSC frequency must a watch always be maintained when sailing in Sea Area A1?

A

12577 KHz
16804.5 KHz
4207.5 KHz
6312 KHz
8414.5 KHz

32
Q

Please define the acronym AGC?

A

Advanced Group Call
Aerpnautical Guard Channel
Ascociated Group Channel
Automatic Gain Controll
Automatic Group Call

33
Q

What device is used to check specific gravity of lead-acid batteries?

A

Dummy Load
Gravimeter
Hydrometer
Hydrophore
Ammeter

34
Q

Which frequency is exclusive international HF frequency for transmition of Navtex type information?

A

4177.5 KHz
4209.5 KHz
4210 KHz
8364 KHz
Navtex type broadcasts are not transmitted on any HF frequency

35
Q

When do Navtex broadcasts typically achieve maximum transmitting range?

A

Midday
Middle of the night
Post sunrise
Sunset
Transmitting range does not depend upon the day time

36
Q

What is the required number of hours that SART’s battery must be able to operate the until in the unit is in Standby mode?

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A

24
36
48
8
96========–[[[[[[

37
Q

Which of the following defines “ITU Channel 1216”?

A

CH 12 in the 16 MHz band’’/[[°°°’’