korosi untuk SMK kelas X DPIB

Quiz
•
Science
•
10th Grade
•
Easy
Burhanuddin, S.Pd., Gr.
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nama lain dari peristiwa korosi adalah...
Perkaratan
Pengisian
Pengosongan
Pembakaran
Pemindahan
Answer explanation
Warna coklat bukan hanya ditemukan pada coklat di hari valentine. Namun coklat juga ditemukan pada peristiwa perkaratan (korosi) besi.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bahan bangunan yang rentan terhadap korosi adalah...
Beton
Baja penopang
Fondasi
Lantai keramik
Kaca jendela
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bahan yang perlu disiapkan sebelum masuk praktikum hal-hal yang memengaruhi percepatan korosi diantaranya...
Paku, asam cuka, air garam
Paku, plastik, sirop, keramik
Air, daging, sirop
Tulang, kaca, air garam
Tulang, paku, air garam
Answer explanation
Proses perkaratan sangat dipenaruhi oleh keadaan lingkungan.
Pada kondisi tertentu, peristiwa korosi bisa menjadi sangat cepat; tergantung di mana logam ditempatkan.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jenis-jenis benda yang rentan mengalami korosi pada bahan bangunan adalah...
baja ringan, kusen kayu, atap seng, lantai tegel
baja konstruksi, atap seng, pagar besi
baja konstruksi, atap seng, kusen aluminium
baja konstruksi, plafon asbes, kusen kayu
besi hollo, atap seng, pagar bambu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Salah satu cara yang dilakukan untuk mencegah korosi adalah...
membiarkan logam di ruang terbuka
melapisi logam dengan minyak
merendam logam dalam cairan asam
membiarkan logam kontak dengan air garam
merendam logam dalam laut
Answer explanation
korosi pada dasarnya adalah reaksi redoks besi dengan zat oksidator di sekelilingnya
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Rumus kimia karat besi adalah ….
Fe2O4.3H2O
Fe3O3.xH2O
Fe2O3.5H2O
Fe2O3.xH2O
Fe2O3.5H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Faktor – faktor berikut menyebabkan korosi, kecuali …
suhu
minyak
pH
Elektrolit
H2O
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