
Pre Test Drill & Blast Excellence
Authored by Sesek Gouk
Education
1st - 5th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang harus dilakukan ketika pengeboran pada material keras ?
a. Meningkatkan pulldown & menurunkan rotation
b. Meningkatkan rotation & menurunkan pulldown
c. Mingkatkan pulldown & rotation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang dimaksud dengan Powder Factor (PF) ?
a. Perbandingan jumlah batuan yang diledakkan dengan jumlah bahan peledak yang dibutuhkan
b. Perbandingan jumlah bahan peledak yang dibutuhkan dengan jumlah batuan yang diledakkan
c. Jumlah bahan peledak yang dibutuhkan
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut merupakan tujuan dari sleep blast, kecuali
a. Mengurangi event STMB
b. Mengurangi frekuensi kegiatan peledakan
c. Meningkatkan akurasi firing time (saat rest time)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapa perbandingan komposisi AN & Emulsion pada produk Dabex73 ?
a. 10% : 90%
b. 20% : 80%
c. 30% : 70%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tujuan utama penggunaan bottom air deck adalah ?
a. Menghemat pemakaian accessories
b. Mengurangi jumlah isian bahan peledak serta sebagai freeface tambahan
c. Mencegah terjadinya stemming ejection
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa satuan dari nilai ROP (Rate of Penetration) ?
a. m/jam
b. bcm/jam
c. meter
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapa target ROP drill di site KSM ?
a. 60 m/jam
b. 45 m/jam
c. 70 m/jam
d. 50 m/jam
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