
Q&Q MINERBA
Authored by Sherina Park
Specialty
Professional Development
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa saja Komponen Batubara?
Moisture, Sand, Sulfur
Sulfur, Carbon, Sand
Moisture, Inorganic Matter, Organic Matter
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah yang termasuk parameter pengujian batubara?
Total Moisture, Proximate Analysis, Total Sulfur, Gross Calorific Value
Ultimate Analysis, Ash Fusion Temperature, Ash Analysis, Hardgrove Grindability Index
Jawaban A dan B benar semua
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Semakin rendah nilainya, semakin tinggi konsumsi batubara yang diperlukan. Efek dari Parameter apa?
Total Sulfur
Hardgrove Grindability Index
Gross Calorific Value
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Parameter apa yang sebagai polusi udara dan penyebab korosif ?
Nitrogen dan Sulfur
Carbon dan Oxygen
Fixed Carbon dan Total Moisture
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang dimaksud dengan “Berat Konstan” pada proses pengeringan batubarasaat proses preparasi menurut standard ASTM?
Kondisi dimana berat contoh batubara pada saat kondisi sudah tidak mengalami penurunan atau penambahan secara signifikan dan selisih berat penimbangan terakhir dengan sebelumnya kurang dari 0,1% per jam
Kondisi dimana berat contoh batubara mengalami penurunan dan kenaikan sebesar 2,5%dari berat penimbangan sebelumnya
Jawaban A dan B benar
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebutkan tahapan dasar-dasar dalam melakukan preparasi contoh batubara?
Pengeringan, Penggilingan, Pengadukan, Pembagian, Penggerusan
Pengeringan, Pengemasan, pengadukan, penggerusan, pembagian
Pengeringan, Penggerusan, Pembagian, Pengadukan, Pengemasan
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa perbedaan antar Total Moisture dan Inherent Moisture?
Total Moisture adalah keseluruhan kandungan air yang terkandung didalam batubara sedangkan Inherent Moisture adalah kandungan air dalam batubara yang tertinggal setelah dikering udarakan
Total moisture adalah kandungan air yang diperoleh dari proses preparasi sedangkan Inherent Moisture adalah moisture dari proses analisa laboratorium
Total Moisture dan Inherent Moisture tidak memiliki perbedaan
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