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Heat and Mass Transfer

Heat and Mass Transfer
An ordinary passenger aircraft requires a cooling system of capacity.

8 TR
4 TR
10 TR
2 TR

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Heat and Mass Transfer
The use of heat exchangers is made in

Condensers and evaporators in refrigeration and air conditioning units
Radiators in automobile
Condensers and boilers in steam plants
All of these

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Heat and Mass Transfer
Metals are good conductors of heat because

They contain free electrons
Their atoms collide frequently
Their atoms are relatively far apart
They have high density

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Heat and Mass Transfer
The energy distribution of an ideal reflector at higher temperatures is largely in the range of

Longer wavelength
Remain same at all wavelengths
Wavelength has nothing to do with it
Shorter wavelength

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Heat and Mass Transfer
The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to

Biot number
Grashoff number
Stanton number
Peclet number

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Heat and Mass Transfer
Reynolds number is the ratio of

None of these
Energy transferred by convection to that by conduction
Inertia force to viscous force
Kinematic viscosity to thermal diffusivity

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MORE MCQ ON Heat and Mass Transfer

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