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Mechanical Engineering · Q70

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 70

Q70

Heat transfer in liquid and gases takes place by

A.
Conduction
B.
Convection
Answer
C.
Radiation
D.
Conduction and convection

Answer: Option B

Solution

Answer: Option B
Solution:
When a fluid, such as air or a liquid, is heated and then travels away from the source, it carries the thermal energy along. This type of heat transfer is called convection.
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