
lIMNOLOGI BAB 9
Authored by ARBEN VIRGOTA
Professional Development
University

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang menyebabkan warna air berfluktuasi antara hijau kekuningan, kuning, coklat, dan coklat hitam?
Zat humin yang terlarut
Oksidasi logam berat
Aktivitas mikroorganisma
Pencemaran kimiawi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimana cara pengukuran penetrasi cahaya dilakukan?
Menggunakan thermometer air raksa
Menggunakan alat keping Secchi
Menggunakan alat pengukur arus
Menggunakan kertas lakmus
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang menjadi tujuan pengukuran pH air?
Mengetahui penetrasi cahaya
Mengetahui nilai pH air
Mengetahui konsentrasi oksigen terlarut
Mengetahui nilai BOD
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimana pengukuran konsentrasi oksigen terlarut dalam air dilakukan secara manual?
Menggunakan metoda Winkler
Menggunakan pH-meter
Menggunakan oxymeter
Menggunakan kertas lakmus
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang menjadi dasar pengukuran nilai BOD?
Proses pengukuran konsentrasi oksigen terlarut
Proses pengukuran pH air
Proses pengukuran penetrasi cahaya
Proses pengukuran warna air
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang harus dilakukan setelah substrat dihomogenkan dan ditimbang sebanyak 100 gr?
Dihaluskan dengan cara menggerus
Dibakar dalam tungku pembakar pada temperatur 700 °C selama 3,5 jam
Dipanaskan dalam oven pada temperatur 45 °C selama 1 jam
Dipanaskan dalam oven pada temperatur 45 °C sampai diperoleh berat substrat yang konstan
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang digunakan untuk mengukur nilai salinitas air dengan mudah dan cepat?
Refraktometer
Conductivity-meter
Abu
Lugol
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