
Horizontal Boring Working 2
Authored by deninur faizin
Specialty
University
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Andi bertugas mengoperasikan mesin horizontal boring manual. Saat melakukan proses pengeboran, ia melihat bahwa hasil lubang tampak oval. Apa kemungkinan penyebabnya?
Mata bor terlalu tajam
Setting alat tidak tepat atau bor tidak lurus
Benda kerja terlalu ringan
Lubang tidak dibor sebelumnya
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebelum mulai kerja, Deni melakukan pemeriksaan pada pompa hidraulik mesin horizontal boring. Apa tujuan utama dari pemeriksaan ini?
Menjaga estetika mesin
Menghindari kebocoran dan memastikan sistem berfungsi
Mengetahui kecepatan putar spindle
Memastikan suara motor stabil
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Seorang operator menggunakan dial bore gauge untuk mengukur diameter dalam lubang silinder. Jarum pendek menunjukkan angka 2 dan jarum panjang di 30. Berapa hasil pengukurannya?
2,30 mm
2,03 mm
2,3 cm
3,20 mm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Saat melakukan proses tapping, Yanto merasa alatnya macet di tengah proses. Setelah dicek, ternyata tap patah di dalam lubang. Apa kemungkinan penyebab utama dari kejadian ini?
Lubang terlalu besar
Umur tap sudah habis
Penggunaan tap secara otomatis
Tap terlalu panjang
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pak Rudi ingin memastikan benda kerja terjepit kuat di atas meja mesin horizontal boring. Komponen utama manakah yang ia manfaatkan?
Column
Spindle
Table
Panel kontrol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam pekerjaan boring, kenapa sangat penting bagi operator melakukan setting center point yang tepat antara cutter dan benda kerja?
Agar suara mesin halus
Mencegah kebocoran hidrolik
Menjamin hasil lubang presisi
Supaya pemotong tidak tumpul
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Saat proses boring, mesin menunjukkan getaran berlebih dan hasil lubang menjadi tidak rata. Apa yang sebaiknya diperiksa oleh operator?
Kecepatan putar
Ketajaman cutter dan kekuatan penjepitan benda kerja
Jenis material
Sistem pendingin
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