IGCSE /Grade 10
Science MCQ Based On Convection in energy transfer in fluids
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IGCSE Grade 10 Science Convection in energy transfer in fluids
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Forced convection is a mechanism in which fluid motion is generated by an external force.
Read the options carefully.
Nusslet number is a dimensionless parameter used in calculations of heat transfer between a moving fluid and a solid body.
It is the process by which heat is transferred by the movement of a heated fluid.
Natural convection is a mechanism of heat transportation in which fluid motion is not generated by an external source.
Read the options carefully.
Convection is the process of heat transfer by the bulk movement of molecules within fluids.
It is a fluid motion due to buoyancy motion.
Washing a room with a heat blower is an example of forced convection.
Grashof number is the ratio of buoyancy forces to the viscous forces.
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