Question
21
Karakteristik umum radar S-band adalah...
A general characteristic of S-band radar is...
Options
a
Lebih baik bekerja dalam hujan lebat dibanding radar X-band
Performs better in heavy rain than X-band radar
b
Lebih peka terhadap target kecil dibanding radar X-band
More sensitive to small targets than X-band radar
c
Hanya efektif untuk jarak sangat dekat
Only effective at very short range
d
Tidak dapat digunakan untuk plotting
Cannot be used for plotting
Grade
Hard
Last Update
02 Jul 2026 13:45
By Yan
Question
22
Radar horizon dipengaruhi terutama oleh...
The radar horizon is mainly affected by...
Options
a
Tinggi antena radar dan tinggi target
The height of the radar antenna and the height of the target
b
Kecepatan putar mesin induk
The rotation speed of the main engine
c
Warna cat target
The color of the target’s paint
d
Kedalaman laut di bawah kapal
The depth of water beneath the ship
Grade
Medium
Last Update
02 Jul 2026 14:00
By Yan
Question
23
Relative motion pada radar adalah tampilan di mana...
Relative motion on radar is a display in which...
Options
a
Gerak target ditampilkan relatif terhadap kapal sendiri
The movement of targets is shown relative to own ship
b
Semua target dan kapal sendiri bergerak sesuai gerak sejati di bumi
All targets and own ship move according to their true movement on the earth
c
Kapal sendiri tidak pernah berada di layar
Own ship never appears on the screen
d
Semua target dianggap diam
All targets are considered stationary
Grade
Medium
Last Update
02 Jul 2026 14:01
By Yan
Question
24
True motion pada radar adalah tampilan di mana...
True motion on radar is a display in which...
Options
a
Gerak kapal sendiri dan target ditampilkan sesuai gerak sejati
The movement of own ship and targets is shown according to their true movement
b
Kapal sendiri selalu tetap di pusat layar
Own ship always remains at the center of the screen
c
Semua target bergerak mengelilingi kapal sendiri
All targets move around own ship
d
Semua target dianggap diam terhadap bumi
All targets are considered stationary relative to the earth
Grade
Hard
Last Update
02 Jul 2026 14:03
By Yan
Question
25
Dalam relative motion, kapal sendiri pada layar radar...
In relative motion, own ship on the radar screen...
Options
a
Tetap berada di pusat atau posisi acuan tampilan
Remains at the center or reference position of the display
b
Selalu bergerak menuju atas layar
Always moves toward the top of the screen
c
Berpindah mengikuti arus
Moves according to the current
d
Bergerak sesuai haluan target
Moves according to the target’s heading
Grade
Medium
Last Update
02 Jul 2026 14:03
By Yan
Question
26
Keuntungan langsung plotting relatif adalah...
The direct advantage of relative plotting is...
Options
a
CPA dan TCPA lebih cepat diperoleh dari konstruksi plot
CPA and TCPA are obtained more quickly from the plot construction
b
Haluan sejati target langsung terlihat tanpa data kapal sendiri
The target’s true course is seen immediately without own ship data
c
Posisi geografis target langsung diketahui
The target’s geographical position is known immediately
d
Set dan drift arus langsung dapat dihitung
Current set and drift can be calculated immediately
Grade
Medium
Last Update
02 Jul 2026 14:43
By Yan
Question
27
Keuntungan langsung plotting sejati adalah...
The direct advantage of true plotting is...
Options
a
Haluan dan kecepatan sejati target lebih cepat diperoleh
The target’s true course and speed are obtained more quickly
b
CPA selalu sama dengan nol
CPA is always zero
c
Baringan relatif target lebih mudah diukur
The target’s relative bearing is easier to measure
d
Kapal sendiri tidak memerlukan data gyro
Own ship does not require gyro data
Grade
Medium
Last Update
02 Jul 2026 15:03
By Yan
Question
28
Jika baringan target tetap sedangkan jarak makin berkurang, keadaan ini menunjukkan...
If the target bearing remains constant while the range is decreasing, this indicates...
Options
a
Risiko tabrakan karena CPA sangat kecil atau nol
Risk of collision because CPA is very small or zero
b
Target pasti akan lewat aman di buritan
The target will certainly pass safely astern
c
Target sedang bergerak menjauh
The target is moving away
d
Tidak dapat dinilai sama sekali
It cannot be assessed at all
Grade
Medium
Last Update
02 Jul 2026 15:04
By Yan
Question
29
CPA adalah...
CPA is...
Options
a
Jarak terdekat yang akan dicapai antara dua kapal
The closest distance that will be reached between two ships
b
Waktu yang tersisa sampai kapal berpapasan
The time remaining until the ships pass each other
c
Baringan sejati target pada saat diamati
The target’s true bearing at the time of observation
d
Kecepatan relatif antara dua kapal
The relative speed between two ships
Grade
Easy
Last Update
02 Jul 2026 15:04
By Yan
Question
30
TCPA adalah...
TCPA is...
Options
a
Waktu yang tersisa sampai tercapai CPA
The time remaining until CPA is reached
b
Jarak target dari kapal sendiri
The range of the target from own ship
c
Waktu yang diperlukan untuk satu putaran antena
The time required for one antenna rotation
d
Perubahan baringan target per menit
The change in target bearing per minute
Grade
Easy
Last Update
02 Jul 2026 15:05
By Yan