• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Heat and Mass Transfer

Heat and Mass Transfer
According to Wien's law, the wavelength corresponding to maximum energy is proportion to

T
I²
Absolute temperature (T)
F

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Which of the following property of air does not increase with rise in temperature?

Dynamic viscosity
Thermal diffusivity
Thermal conductivity
Density

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Thermal conductivity of solid metals with rise in temperature normally

Remain constant
Decreases
May increase or decrease depending on temperature
Increases

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
According to Stefan Boltzmann law, ideal radiators emit radiant energy at a rate proportional to

Square of temperature
Fourth power of absolute temperature
Fourth power of temperature
Absolute temperature

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Two balls of same material and finish have their diameters in the ratio of 2: 1 and both are heated to same temperature and allowed to cool by radiation. Rate of cooling by big ball as compared to smaller one will be in the ratio of

0.043055555555556
0.084027777777778
0.16736111111111
0.042361111111111

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
In heat transfer, conductance equals conductivity (kcal/hr/sq.m/°C/cm) divided by

Hr (time)
K.cal (heat)
Sq. m (area)
°C (temperature)

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Heat and Mass Transfer

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑