Heat and Mass Transfer
Authored by Armstrong M
Science
University
Used 30+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Heat transfers from an area of ____temperature to an area of ___ temperature.
high to low
low to high
high to high
t can travel high to low and low to high.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Warm air is __________ dense than cold air and rises creating convection currents.
more
less
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Transfer of thermal or heat energy through "touch"
conduction
convection
radiation
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fourier law of conduction
KAdT
KLdT/dX
-KAdT/dX
5.
FILL IN THE BLANKS QUESTION
45 sec • 1 pt
Internal Thermal Resistance (R) formula for single slab is
(a)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
where L = 0.25 m and K= 387.6 W/mk, find Q in W/m2
0.155 x 105
15.55 x 103
0.155 x 103
155 x 103
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the value for RBC
0.2343
0.1461
0.2545
0.4245
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