Heat Transfer Questions

Q.  Thermal conductivity of wood depends on_______________?

a. moisture
b. density
c. temperature
d. all of the above
e. none of the above


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The value of the wavelength for maximum emissive power is given by ___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Total emissivity of polished silver compared to black body is___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The value of Prandtl number for air is about _______________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The energy distribution of an ideal reflector at higher temperatures is largely in the range of ___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which of the following property of air does not increase with rise in temperature ________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  In free con-vection heat transfer, Nusselt number is function of________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  According to Stefan-Boltzmann law, ideal radiators emit radiant energy at a rate proportional to___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Log mean temperature difference in case of counter flow compared to parallel flow will be________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The unit of Stefan Boltzmann constant is ____________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Stefan Boltzmann law is applicable for heat transfer by __________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Thermal diffusivity of a substance is __________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The thermal diffusivities for gases are generally_____________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A grey body is one whose absorptivity _________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Planck’s law holds good for________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A perfect black body is one which_______________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  If the temperature of a solid surface changes form 27°C to 627°C, then its emissive power changes in the ratio of___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  In regenerator type heat exchanger, heat transfer takes place by___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Two plates spaced 150 mm apart are maintained at 1000°C and 70°C. The heat transfer will take place mainly by ___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Depending on the radiating properties, body will be transparent when________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Absorptivity of a body will be equal to its emissivity___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts