Latihan Minggu 8 : SPI 1053
Quiz
•
Mathematics, Physics, Science
•
1st Grade - University
•
Practice Problem
•
Medium
Mohammad Arif
Used 13+ times
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5 questions
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1.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
Tandakan jenis-jenis kecacatan kimpalan arka
Herotan
Keliangan
Retak
Patah
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Apakah sebab berlakunya keliangan?
Disebabkan gas yang terperangkap semasa pemejalan kawasan kimpal
Disebabkan wujudnya tegasan baki
Disebabkan suhu yang tidak cukup tinggi
Disebabkan logam induk lebur
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Keliangan boleh diatasi dengan cara berikut KECUALI
Pemilihan elektrod dan logam yang sesuai
Meningkatkan tetapan suhu mesin kimpalan
Memperbaiki teknik kimpalan
Membersih dan menghindari pencemaran
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mengapakah kecacatan pelakuran tidak sempurna berlaku?
Suhu yang tidak cukup tinggi untuk melebur sepenuhnya logam induk atau logam pengisi
Oksida fluks dan bahan salutan elektrod terperangkap
Gas yang terperangkap semasa pemejalan kawasan kimpal
Pengembangan dan pengecutan logam yang tidak seragam
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Keretakan dalam penghasilan kumai boleh berlaku atas faktor-faktor berikut KECUALI
Benda kerja dikekang dengan terlalu kuat
Sambungan terlalu keras dan rapuh
Logam kimpal tidak berupaya mengecut semasa penyejukan
Teknik kimpalan yang terlalu sempurna
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