
Karakteristik Fisik dan Termal Pangan - 02
Quiz
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Other
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University
•
Hard
Muhammad Irfan Febriansyah
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Metode berikut digunakan untuk memisahkan partikel berdasarkan distribusi ukuran, KECUALI:
Elutriasi udara
Sedimentasi gravitasi
Sentrifugasi
Kromatografi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Difusivitas panas (α) pada bahan pangan didefinisikan sebagai:
Kemampuan bahan menyerap panas
Rasio antara konduktivitas panas dan produk densitas dengan panas jenis
Kecepatan pindah panas melalui konveksi
Ukuran ruang kosong dalam bahan
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Penggunaan toluena dalam pengukuran densitas nyata bertujuan untuk:
Meningkatkan viskositas bahan
Mengukur volume zat yang diusir oleh bahan
Menentukan kadar air bahan
Mempercepat proses penguapan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perbedaan utama fluida Newtonian dan Non-Newtonian adalah:
Newtonian: viskositas tetap; Non-Newtonian: viskositas berubah dengan gaya
Newtonian: hanya cairan; Non-Newtonian: hanya padatan
Newtonian: digunakan pada makanan beku; Non-Newtonian: pada makanan cair
Non-Newtonian: contohnya air; Newtonian: contohnya madu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Parameter termal yang paling kritis dalam penyimpanan biji-bijian untuk mencegah kerusakan adalah:
Warna
Konduktivitas panas
Luas permukaan
Bentuk
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Contoh bahan pangan dengan sifat reologi plastis adalah:
Air
Selai kacang
Larutan gula
Minyak zaitun
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa ukuran partikel tepung susu bubuk tidak boleh terlalu kecil atau terlalu besar?
Terlalu kecil: mudah menggumpal; terlalu besar: sulit larut
Terlalu kecil: meningkatkan densitas; terlalu besar: mengurangi warna
Ukuran partikel tidak memengaruhi fungsi tepung
Terlalu besar: meningkatkan laju respirasi
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