• 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
The critical radius is the insulation radius at which the resistance to heat flow is

Minimum
Maximum
Zero
None of these

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Total heat is the heat required to

Convert water into steam and superheat it
Change vapour into liquid
Increase the temperature of a liquid or vapour
Change liquid into vapour

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
In case of liquids and gases, the heat transfer takes place according to

Conduction
None of these
Convection
Radiation

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
A cube at high temperature is immersed in a constant temperature bath. It loses heat from its top, bottom and side surfaces with heat transfer coefficients of h₁, h₂ and h₃ respectively. The average heat transfer coefficient for the cube is

h₁ + h₂ + h₃
(h₁.h₂.h₃)1/3
1/h₁ + 1/h₂ + 1/h₃
None of these

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Thermal diffusivity is a

All of these
Physical property of a substance
Function of temperature
Dimensionless parameter

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
A composite slab has two layers of different materials with thermal conductivities k₁ and k₂. If each layer has the same thickness, then the equivalent thermal conductivity of the slab will be

k₁ k₂
(k₁ + k₂)/ k₁ k₂
2 k₁ k₂/ (k₁ + k₂)
(k₁ + k₂)

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
↑