
Perpindahan Panas
Quiz
•
Engineering
•
University
•
Practice Problem
•
Hard
ZAC Study
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Parameter utama yang mempengaruhi konveksi paksa (force convection) adalah?
Jenis material
Kecepatan fluida
Jenis fluida
Pengaruh gaya apung
2.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Mengapa pada konveksi (natural convection) bebas panas dapat berpindah antar fluida tanpa energi luar yang mempengaruhi?
Karena perbedaan temperatur
Karena matrial plat
Karena pengaruh gaya apung
Karena pengaruh gaya sentrifugal
3.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Suatu lapisan batas tipis yang terbentuk karena gesekan viskos (viscous shear) disebut?
Boundary layer
Sub layer
Viscous layer
Reynold number
4.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Udara mengalir diatas plat datar sepanjang 20 cm dengan kecepatan 1 m/s, jika viskositas kinematik udara 16,8 x 10-6 m2/s berapa nilai bilangan Reynold?
11.905
12.500
12.900
11.500
5.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Gaya apung yang terjadi pada fluida disebabkan oleh?
Gardien tekanan fluida
Gardien temperatur fluida
Gardien kecepatan fluida
Gardien densitas fluida
6.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Contoh alat yang menggunakan prinsip kerja konveksi bebas adalah?
Colling tower
Evaporataor
Kondensor
Solar water heater
7.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Proses boiling atau pendidihan terjadi karena?
Temperatur permukaan fluida lebih kecil dari pada temperatur saturasi
Temperatur saturasi sama dengan temperatur permukaan fluida
Temperatur saturasi lebih besar dari pada temperatur permukaan fluida
Temperatur permukaan fluida lebih besar dari pada temperatur saturasi
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