
Pengelasan OWA
Authored by shadra 28
Other
9th - 12th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nyala api oksigen lebih sering digunakan untuk pengelasan logam....
Besi dan baja
Baja dan perunggu
Perunggu dan besi
Kuningan dan besi
Kuningan dan perunggu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa busur/ nyala api oksidasi tidak dapat dipakai untuk mengelas baja
hasil pengelasan akan kuat tetapi rapuh
hasil pengelasan akan lunak tetapi rapuh
hasil pengelasan akan berkarat dan rapuh
hasil pengelasan akan memuai dan getas
hasil pengelasan akan berkarat dan rapuh
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Busur/ nyala api yang cocok untuk mengelas logam non-ferous, seperti nikel dan monel adalah
busur/nyala api vertical
busur/nyala api horizontal
busur/nyala api karburasi
busur/nyala api oksidasi
busur/nyala api netral
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Batang las yang terbuat dari logam non-ferrous terdapat campuran bahan logam, kecuali
Nikel
ferrum
Chromium
Vanadium
molydenum
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bila pembakar dipegang tangan kanan, maka pengelasan dimulai dari kanan menuju kekiri , hal ini dinamakan proses
Teknik las mundur
Teknik las mendatar
teknik las 1G
Teknik las maju
teknik las 2G
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada proses pengelasan aluminium baik sekali bila terlebih dahulu dipanaskan secara merata untuk mencegah kemungkinan benda kerja jadi bengkok. Suhu yang dianjurkan
50 sampai 100 °F
150 sampai 250 °F
450 sampai 550 °F
600 sampai 750 °F
300 sampai 400 °F
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pengelasan dengan oksi-asetilin adalah proses pengelasan secara... dengan pemanasan permukaan logam
Otomatis
Modern
Manual
Canggih
Jadul
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