
Training pH, EC dan chlorine 090525
Quiz
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Other
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Professional Development
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Practice Problem
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Medium
Febby Aryati
Used 5+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berapa kisaran untuk kondisi pH asam?
1 - 6
8 - 14
< 8
>6
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Apa alasan yang benar pH cooling tower dijaga di rentang kendali 8.0 - 8.7?
Jika pH di bawah 8.0 maka akan mempercepat pengendapan hardness
Jika pH di bawah 8.0 maka akan mempercepat potensi korosi
Jika pH di atas 8,7 maka akan mempercepat potensi korosi
Mengikuti aturan standar internasional
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika terbaca di alat conductivity meter sebuah larutan 3.82 ms/cm, angka ini setara dengan...
38.2 µs/cm
38.200 µs/cm
3.820 µs/cm
382 µs/cm
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kapur atau hardness lebih mudah mengendap dalam kondisi atau suasana...
Asam
Basa
Asam dan Basa
Netral
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Faktor yang mempengaruhi kenaikan conductivity di cooling hanya blowdown yang tidak lancar
Benar
Salah
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Elektroda pH meter cukup dibilas dengan air dan tidak boleh dilap dengan tissue
Benar
Salah
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Penggunaan chlorine di dalam sistem cooling tower bertujuan untuk...
Menjaga pH
Mengendalikan pertumbuhan bakteri
Mencegah kerak
Menurunkan conductivity
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