Heat is transferred by conduction, convection and radiation in
A) Melting of ice
B) Refrigerator freezer coils
C) Boiler furnaces
D) Condensation of steam in a condenser
E) Insulated pipes carrying hot water
Correct Answer:
Verified
Q3: The unit of thermal diffusivity is
A)m2/hr°C
B)m2/hr
C)m/hr°C
D)kcal/m2-hr
E)m/hr
Q4: The diathermous body is one that
A)diffuses all
Q5: Thermal conductivity of water at 20°C is
Q6: Dropwise condensation occurs on a
A)Glazed surface
B)Smooth surface
C)Oily
Q7: The value of reheat factor is of
Q9: Which one of the following materials will
Q10: In the temperature of air above a
Q11: The value of Prandtl number for air
Q12: The temperature reading taken using Centigrade and
Q13: Agitated film evaporator is suitable for concentrating
A)Insulating
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