Heat Transfer Questions

Q.  Which of the following bodies will not be able to emit radiation continuously?

a. a body with very high temperature placed in air medium
b. a body with temperature 0 °C placed in air medium
c. a body with temperature 0 °C placed in vacuum
d. none of the above


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The heat transfer is largely governed by conduction from the surface of the fluid, when
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Generally, thermal conductivity of liquids is
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The emissive power of a body depends upon
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  At a given temperature if wavelengths are changed, the quality of radiation per unit wavelength
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the relation between temperature of a body and the wavelength of its emitted radiation at its maximum emissive power?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which of the following relation is correct for the radiation?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the relation between reflectivity (ρ), absorptivity (α) and transmissivity (τ)?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the opaque body?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is diffuse reflection of radiation?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The reflection in which the angle of incident is equal to the angle of reflection is called as
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The values of reflectivity (ρ), absorptivity (α) and transmissivity (τ) of a body are depend upon
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Generally, the convection heat transfer coefficient in drop-wise condensation is
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Surface coating is suitable to maintain
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which theory is widely used to determine the heat transfer coefficient for film condensation on surfaces?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  According to the Nusselt's theory, to determine the heat transfer coefficient for film condensation on surfaces,
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What should be the temperature of black body to emit radiant energy which is independent of the conditions in the surroundings?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Gray body can emits radiation
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the mode of heat transfer from the hot surface to the adjacent layer of fluid which surrounds the surface?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Convective heat transfer coefficient is also known as
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Suppose a hot water is placed inside a closed metal vessel of thickness 5 mm. There is atmospheric air outside the vessel at temperature lower than the temperature of hot water. The heat is transferred from the hot water to atmospheric air. What is the mode of heat transfer in this condition?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts