Pre-test 3
Quiz
•
Engineering
•
University
•
Practice Problem
•
Easy
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Apa parameter yang digunakan untuk mengukur jumlah oksigen yang dibutuhkan oleh bakteri untuk menguraikan bahan organik di dalam air?
COD (Chemical Oxygen Demand)
BOD (Biochemical Oxygen Demand)
TDS (Total Dissolved Solids)
TSS (Total Suspended Solids)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Limbah dengan nilai pH 2 dikategorikan sebagai limbah yang bersifat...
Basa kuat
Netral
Asam kuat
Garam
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Kekeruhan (turbidity) dalam air limbah utamanya disebabkan oleh...
Zat kimia yang terlarut sempurna
Partikel padatan yang tersuspensi
Gas yang terlarut seperti oksigen
Kandungan garam yang tinggi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Manakah di antara berikut ini yang merupakan contoh logam berat yang sering ditemukan dalam limbah industri?
Natrium (Na)
Kalsium (Ca)
Timbal (Pb)
Kalium (K)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. Keberadaan Nitrogen dan Fosfor yang berlebihan di badan air dapat menyebabkan fenomena...
Pemanasan global
Hujan asam
Eutrofikasi
Penipisan ozon
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. Padatan yang dapat lolos melewati saringan (filter) saat analisis sampel air disebut...
Total Suspended Solids (TSS)
Settleable Solids
Total Dissolved Solids (TDS)
Total Solids (TS)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. Bau busuk seperti telur busuk pada limbah seringkali disebabkan oleh terbentuknya gas...
Oksigen (O2)
Karbon dioksida (CO2)
Metana (CH4)
Hidrogen Sulfida (H2S)
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