
Kecacatan Dalam Kimpalan
Authored by SITI KPM-Guru
Construction
9th - 12th Grade
Used 3+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah maksud keliangan (porosity) dalam kimpalan?
A. Logam asas tidak dibersihkan sebelum dikimpal
B. Bendasing yang terperangkap dalam logam kimpal
C. Gas yang terperangkap semasa proses kimpalan
D. Rupa kimpal yang tidak sekata
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara berikut, yang manakah punca utama berlakunya slag inclusion?
A. Arus kimpalan terlalu tinggi
B. Tidak membersihkan sangga sebelum lapisan seterusnya
C. Jarak arka terlalu dekat
D. Elektrod tidak sesuai
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah cara terbaik untuk mengelakkan spatter semasa kimpalan?
A. Gunakan elektrod basah
B. Gunakan arus kimpalan yang terlalu tinggi
C. Tidak membersihkan permukaan logam
D. Laraskan arus mengikut saiz elektrod
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara berikut, manakah BUKAN punca kepada berlakunya undercut?
A. Teknik anyaman salah
B. Sudut elektrod tidak sesuai
C. Permukaan logam kotor
D. Arus kimpalan terlalu tinggi
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapakah crack boleh berlaku pada hasil kimpalan?
A. Penggunaan arus terlalu tinggi
B. Sambungan tidak mengembang atau mengecut dengan bebas
C. Sanga tidak dibersihkan
D. Jarak arka terlalu dekat
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah tindakan pencegahan yang boleh diambil untuk mengelak arc strike?
A. Gunakan arus yang tinggi
B. Tarik arka ke bahan induk
C. Gunakan kain pelindung kebakaran
D. Biarkan pemegang elektrod rosak
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara berikut, yang manakah menyebabkan porosity semasa kimpalan?
A. Logam asas bersih sepenuhnya
B. Penggunaan elektrod yang sesuai
C. Gangguan arka semasa mengimpal
D. Elektrod kering dan bersih
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