Heat Transfer
Fin Design and Transient Heat Conduction
Marks 1Marks 2Marks 5
Convection
Marks 1Marks 2
Heat Exchangers
Marks 1Marks 2Marks 5
1
GATE ME 2014 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Biot number signifies the ratio of
A
convective resistance in the fluid to conductive resistance in the solid
B
conductive resistance in the solid to convective resistance in the fluid
C
inertia force to viscous force in the fluid
D
buoyancy force to viscous force in the fluid
2
GATE ME 2012
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following configurations has the highest fin effectiveness?
A
Thin, closely spaced fins
B
Thin, widely spaced fins
C
Thick, widely spaced fins
D
Thick, closely spaced fins
3
GATE ME 2002
MCQ (Single Correct Answer)
+1
-0.3
The value of Biot number is very small (less than $$0.1$$), when
A
The convective resistance of the fluid is negligible
B
The conductive resistance of the fluid is negligible
C
The conductive resistance of the solid is negligible
D
None of these
4
GATE ME 2001
MCQ (Single Correct Answer)
+1
-0.3
Lumped heat transfer analysis of a solid object suddenly exposed to a fluid medium at a different temp is valid when.
A
Biot number $$< 0.1$$
B
Biot number $$> 0.1$$
C
Fourier number $$< 0.1$$
D
Fourier number $$> 0.1$$
GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude