
SUMATIF TENGAH SEMESTER 2025
Quiz
•
Other
•
1st Grade
•
Practice Problem
•
Medium
Jajang Nurhidayatulloh
Used 1+ times
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80 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Langkah pertama sebelum melakukan praktik kerja di mesin bubut adalah ....
Memasang benda kerja di chuck
Memeriksa kondisi pelumasan dan kebersihan mesin
Menghidupkan mesin untuk uji coba
Menyetel kecepatan putaran
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sebelum benda kerja dijepit pada chuck, operator harus memastikan ....
Chuck sudah longgar
Chuck dan rahang penjepit bersih dari serbuk logam
Pahat sudah terpasang
Mesin sudah berputar pelan
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Langkah yang benar dalam memasang pahat bubut adalah ....
Pahat dipasang miring agar lebih tajam
Ujung pahat sejajar dengan sumbu benda kerja
Pahat dipasang di atas sumbu benda kerja
Pahat ditekan keras agar tidak goyah
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Untuk melakukan pembubutan lurus, arah gerak pahat adalah ....
Tegak lurus sumbu benda kerja
Miring terhadap sumbu benda kerja
Sejajar dengan sumbu benda kerja
Memutar mengikuti benda kerja
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pada saat melakukan pembubutan muka (facing), pahat digerakkan ....
Sejajar sumbu benda kerja
Tegak lurus sumbu benda kerja
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Jika benda kerja terlalu panjang, maka bagian ujungnya perlu ditopang dengan ....
Senter tetap
Senter putar
Chuck tiga rahang
Pelat pembawa
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sebelum mesin bubut dijalankan, posisi tuas eretan harus ....
Didorong penuh ke arah benda kerja
Dibiarkan di tengah
Dijauhkan dari benda kerja
Didorong ke arah pahat
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