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

Mass Transfer

Mass Transfer
Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second.

> 10
1
5 to 10
1 to 5

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec.

1.25
0.0025
2.5
0.25

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
During constant rate drying period, vaporisation rate per unit drying surface area

Does not change with time
Does not affect the moisture content of the wet solid
Increases with time
Decreases with time

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. )

(1 + Ro) = Ro/Ri
(1 - Ri) = Ro/Ri
(1 + Ri) = Ro/Ri
(1 - Ro) = Ro/Ri

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Mechanism of moisture removal in case of freeze drying of food stuff is by

Evaporation
Adsorption
Dehydration
Sublimation

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
__________ is concerned with the adsorption equilibria.

None of these
Freundlich equation
Fick's law
Gibb's equation

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON 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
↑