Natural convection is characterised by__________________?

Related Mcqs:

A multiple effect evaporator as compared to a single effect evaporator of the same capacity has _________________?

A. Lower heat transfer area B. Lower steam economy C. Higher steam economy D. Higher solute concentration in the product...

A perfect black body is a perfect _____________ of radiation?

A. Absorber B. Emitter C. Both A. & B. D. Neither A. nor B....

Stefan-Boltzmann law applies to _____________ body?

A. Black B. White C. Grey D. Any colour...

The Graetz number is concerned with the___________________

A. Mass transfer between a gas and a liquid B. Absorption with chemical reaction C. Heat transfer in turbulent flow D. Heat transfer in laminar flow...

Prandtl number is given by__________________?

A. CP μ/a B. hD/k C. CP μ/k D. μ/h CP...