
UTS Akustik Kelautan 2022/2023
Quiz
•
Science
•
University
•
Hard
Amanda Febrianti
Used 3+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Pada gelembung renang, kenapa nilai gelembung renang tertutup pada ikan memiliki nilai kekuatan pantulan paling tinggi?
Lebih padat sehingga kekuatan pantulan tinggi
Lebih banyak molekul sehingga kekuatan pantulan tinggi
Lebih banyak gas yang terjebak sehingga kekuatan pantulan tinggi
Lebih berstruktur sehingga kekuatan pantulan tinggi
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Mengapa pengamatan pada pukul 02.00 WIT - 04.00 WIT, pergerakan ikan bergerak turun pada fase bulan perbani awal?
Ikan menghindari perairan dangkal
Adanya penurunan jaring (setting)
Adanya hauling jaring
Ikan memang bergerak ke dasar perairan pada jam tersebut
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Pada penelitian Nurafni et al., 2021, Fish finder digunakan untuk….
Membantu melihat perairan
Membantu mendeteksi jenis dasar perairan
Membantu mendeteksi keberadaan ikan
Membantu melihat jumlah ikan di perairan
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Komponen yang menghasilkan listrik dengan frekuensi tertentu dan akan di salurkan ke transducer disebut.....
Transducer
Transmitter
Time Base
Time Varied Gain
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Bentuk ikan tunggal yang tergambar dalam jejak gema berbentuk seperti ...
pisang
pita
titik
bola
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Pada penelitian manik et al., 2006 tentang identifikasi habitat ikan demersal menggunakan alat…
Quantitative echosounder
Qualitative echosounder
Development echosounder
Quantitation echosounder
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Pengoperasian bagan biasanya selalu dilakukan pada saat pencahayaan yang sangat minim. Cahaya masuk ke dalam perairan akan mengalami pereduksian yang jauh lebih besar dibandingkan dalam udara. Hal ini disebabkan adanya (kecuali)
serapan (absorbsi)
Perubahan (transisi)
hamburan (scattering)
pemantulan (refleksi)
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