ME8693 Important Questions Heat and Mass Transfer Regulation 2017 Anna University

ME8693 Important Questions Heat and Mass Transfer

ME8693 Important Questions Heat and Mass Transfer Regulation 2017 Anna University free download. Heat and Mass Transfer Important Questions ME8693 pdf free download.

Sample ME8693 Important Questions Heat and Mass Transfer

1.
What are the differences between natural and forced convection?
BTL-3
Applying
2.
Briefly explain the concept of free convection heat transfer mechanism.
ME8693 Important Questions Heat and Mass Transfer
Define the velocity and thermal boundary layers.
BTL-2
Understanding
4.
Define bulk temperature. How is it used?
BTL-1
Remembering
5.
Why the heat transfer coefficient for natural convection is much less than that for forced convection?
ME8693 Important Questions Heat and Mass Transfer
Define grashoff number and prandtl number.
BTL-2
Understanding
7.
Differentiate viscous sublayer and buffer layer.
BTL-2
Understanding
8.
State Newton’s law of cooling.
ME8693 Important Questions Heat and Mass Transfer
Define laminar sublayer, buffer layer and turbulent layer in a boundary layer.
BTL-3
Applying
10.
A square plate 40 x 40 cm maintained at 400 K is suspended vertically in atmospheric air at 300 K. Determine the boundary layer thickness at trailing edge of the plate.
BTL-5
Evaluating
11.
What is colburnand Reynolds analogy?
ME8693 Important Questions Heat and Mass Transfer
Define Nusselt and Stanton numbers.
BTL-1
Remembering
13.
Distinguish between laminar & turbulent flow.
BTL-2
Understanding
14.
Differences between Biot and prandtl numbers.
BTL-2
Understanding
15.
What is Dittus-Boelter equation?
ME8693 Important Questions HMT
Define momentum thickness.
BTL-1
Remembering
17.
Define critical Reynolds number. What is its typical value for flow over a flat plate and flow through a pipe?
BTL-1
Remembering
18.
Why heat transfer coefficient for natural convection is much lesser than that for forced convection?
BTL-4
Analyzing
19.
What are the different methods of determining heat transfer coefficient in forced convection?
BTL-4
Analyzing
20.
Briefly explain local and average value of skin friction coefficient

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