• 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
For what value of Prandtl number, St = f/2?

2
1.5
> 1
1

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Corrosiveness of steam condensate is due to the presence of

Both A & B
CO₂
Neither A nor B
Dissolved O₂

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Heat transfer rate described by Fourier's law will decrease, if the __________ increases.

Temperature difference
Thickness
Thermal conductivity
Heat transfer area

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe )

2K/h0
hi/K
K/h0
2hi/K

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Which of the following is not concerned with the heat transfer?

Stanton number
Peclet number
Schmidt number
Brinkman number

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is

555
0.55
55.5
0.15

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
↑