• 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
Emissivity of a white polished body in comparison to a black body is

Lower
Same
Depends upon the shape of body
Higher

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
The heat transfer by conduction through a thick sphere is given by

Q = 2πkr1 r2 (T1 - T2)/ (r2 - r1)
Q = 4πkr1 r2 (T1 - T2)/ (r2 - r1)
Q = 8πkr1 r2 (T1 - T2)/ (r2 - r1)
Q = 6πkr1 r2 (T1 - T2)/ (r2 - r1)

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Heat flows from one body to other when they have

Different specific heat
Different temperatures
Different atomic structure
Different heat contents

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
The product of Reynolds number and Prandtl number is known as

Grashoff number
Biot number
Peclet number
Stanton number

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called

Thermal coefficient
Thermal resistance
Thermal conductivity
Temperature gradient

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
According to Stefan's law, the total radiation from a black body per second per unit area is proportional to

T
T2
T5
Absolute 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
↑