• 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 Transfer

Heat Transfer
Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second.

1
30
10
20

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is

Nu = Gz
Nu = Gz
Nu = 2Gz0.5
Nu = 0.023 Re0.8 . Pr0.4

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by

None of these
Conduction
Eddies current
Convection

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
A dephlegmator is a

Total condenser
Vacuum evaporator
Partial condenser
Double pipe heat exchanger

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
The actual temperature drop across the heating surface in an evaporator depends on the

Pressure difference between steam chest and vapour space
All of these
Feed
Depth of liquid over heating surface

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator.

Remains constant
Increases
Decreases
May increase or decrease, depends on the vacuum

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Heat 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
↑