
Operasional Pertambangan
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 4 pts
Apa yang merupakan salah satu metode utama dalam penentuan lokasi penambangan terbuka batubara?
Analisis peta tanah
Studi arus udara lokal
Evaluasi potensi arus air tanah
Survei keanekaragaman flora
2.
MULTIPLE CHOICE QUESTION
20 sec • 4 pts
Apa yang dimaksud dengan "overburden" dalam konteks penambangan terbuka batubara?
Batubara yang terletak di lapisan bawah tanah
Lapisan batuan yang menutupi deposit Batubara
Peralatan khusus untuk pengangkutan Batubara
Proses pemisahan batubara dari bijih lainnya
3.
MULTIPLE SELECT QUESTION
20 sec • 4 pts
Apa manfaat utama dari penggunaan teknologi tambang terkini dalam penambangan terbuka batubara?
Menurunkan biaya produksi
Meningkatkan risiko kecelakaan kerja
Memperpanjang masa aktif tambang
Mengurangi dampak lingkungan
4.
MULTIPLE SELECT QUESTION
20 sec • 4 pts
Macam - macam tambang terbuka?
Open pit, open cast, open cut, open mine
Quarry
Strip mine
a,b,c benar
5.
OPEN ENDED QUESTION
20 sec • 4 pts
Sebuah Bulldozer digunakan untuk menarik alat untuk harrowing yang memiliki lebar kerja 3,7 meter. Kecepatan maju rata-rata dari Bulldozer adalah 4 Km/jam. Faktor Ketersediaan mesin : 0,9 Efisiensi Waktu : 0,83 Efisiensi Kerja : 0,75 Berapakah produktivitas alat tersebut?
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6.
MULTIPLE CHOICE QUESTION
20 sec • 4 pts
Dalam pekerjaan pemuatan (loading) dikenal dengan 3 metode seperti tertera dibawah ini, kecuali
Z-shape loading
I-shape loading
Pass loading
V-shape loading
7.
MULTIPLE CHOICE QUESTION
20 sec • 4 pts
Backhoe, power shovel, dragline, dan clamshell adalah beberapa jenis dari alat berat
Ripper
Excavator
Dump Truck
Wheel Loader
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