• 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
(NRe.NPr)(D/L) is called the __________ number

Stanton
Graetz
Peclet
None of these

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately

37
45
32
50

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Thermal conductivities of most of the liquids __________ with rise in temperature.

Increases
Decreases
Remains unchanged
May increase or decrease; depends on the liquid

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Double pipe heat exchangers are preferably useful, when

Requirement of heat transfer area is low
Overall heat transfer co-efficient is very high
High viscosity liquid is to be cooled
A corrosive liquid is to be heated

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is

Forward
None of these
Backward
Parallel

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Wavelength corresponding to the maximum energy is inversely proportional to the absolute temperature. This is __________ law.

Dalton's
Wien's
Kirchoffs
Stefan's

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
↑