Membubut benda kerja yang tidak beraturan, sebaiknya menggunakan…

Soal US TP Bubut Kelas XII

Quiz
•
Other
•
12th Grade
•
Medium
Imam Saputro
Used 13+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Centre kepala lepas
Plat pembawa
Cekam rahang 3
Chuck drill
Cekam rahang 4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Putaran mesin yang cocok untuk benda kerja berdiameter 30 mm dari bahan St 37 dengan Cs = 80 m/menit adalah:
2000 rpm
775 rpm
849 rpm
220 rpm
470 rpm
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Faktor utama yang mempengaruhi kualitas permukaan hasil bubutan adalah...
Kedalaman pemakanan
Bahan benda kerja
Harga mesin bubut
Kecepatan putar spindle
Jumlah mata pahat
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada sebuah gambar kerja tertulis M 14 x 1,25, maka maksud ukuran tersebut adalah:
M momen, 14 diameter luar, 1,25 kisar
M macam ulir, 14 jumlah ulir, 1,25 besar ulir
M metris, 14 diameter terkecil, 1,25 kisar
M metris, 14 diameter terbesar, 1,25 kisar
M metris, 14 diameter dalam, 1,25 kisar
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seorang operator mesin bubut akan membuat poros dengan panjang 120 cm. Benda yang dia butuhkan untuk menyangga benda kerja supaya lebih stabil saat berputar adalah…
Kepala lepas
Kartel
Kacamata tetap (penyangga tetap)
Cekam rahang 3
Cekam rahang 4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Finishing pekerjaan bubut salah satunya adalah champer, tujuannya adalah:
Benda supaya mengkilat
Benda supaya baik
Benda supaya halus
Benda supaya lebih mahal
Benda supaya tidak tajam bagian tepinya
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tujuan pekerjaan kartel (knurling) pada benda-benda tertentu adalah:
Memperoleh keindahan
Memperoleh permukaan yang kasar agar tidak licin
Persyaratan kerja
Agar meningkatkan harga jual
Kelengkapan pekerjaan
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