Which of the following is the case of heat transfer by radiation ___________________?

Related Mcqs:

Unit of thermal conductivity in M.K.S. units is ___________________?

A. kcal/kg m2 °C B. kcal-m/hr m2 °C C. kcal/hr m2 °C D. kcal-m/hr °C E. kcal-m/m2 °C...

Thermal conductivity of a material may be defined as the________________?

A. quantity of heat flowing in one second through one cm cube of material when opposite faces ^re maintained at a temperature difference of 1°C B. quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C … Thermal conductivity of a material may be defined as the________________?Read More...

In convection heat transfer from hot flue gases to water tube, even though flow may be turbulent, a laminar flow region (boundary layer of film) exists close to the tube. The heat transfer through this film takes place by___________________?

A. convection B. radiation C. conduction D. both convection and conduction E. none of the above...

All radiations in a black body are___________________?

A. reflected B. refracted C. transmitted D. absorbed E. partly reflected and partly absorbed...

The amount of radiation mainly depends on___________________?

A. nature of body B. temperature of body C. type of surface of body D. all of the above E. none of the above...