The amount of radiation mainly depends on___________________?

Related Mcqs:

Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of__________________?

A. 0.002 B. 0.02 C. 0.01 D. 0.1 E. 0.5...

Moisture would find its way into insulation by vapour pressure unless it is prevented by __________________ ?

A. high thickness of insulation B. high vapour pressure C. less thermal conductivity insulator D. a vapour seal E. all of the above...

Film coefficient is defined as Inside diameter of tube________________?

A. Equivalent thickness of film B. Thermal conductivity Equivalent thickness of film Specific heat x Viscocity C. Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity D. Film coefficient x Inside diameter Thermalconductivity E. none of the above...

The concept of overall coefficient of heat transfer is used in case of heat transfer by________________?

A. conduction B. convection C. radiation D. conduction and convection E. convection and radiation...

Planck’s law holds good for________________?

A. black bodies B. polished bodies C. all coloured bodies D. all of the above E. none of the above...