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Heat Transfer
Conduction
Marks 1Marks 2Marks 5
Fin Design and Transient Heat Conduction
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Convection
Marks 1Marks 2
Radiation
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Heat Exchangers
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1
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
2
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 $$> 0.1$$
3
GATE ME 1994
True or False
+1
-0
When the fluid velocity is doubled the thermal time constant of a thermometer used for measuring the fluid temperature reduces by a factor of $$2$$
A
TRUE
B
FALSE
4
GATE ME 1991
MCQ (Single Correct Answer)
+1
-0.3
Biot number signifies
A
The ratio of heat conducted to heat converted
B
The ratio of heat convected to heat conducted
C
The ratio of external convective resistance to internal conductive resistance
D
The ratio of internal conductive resistance to external convective resistance
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Questions Asked from Marks 1
GATE ME 2017 Set 2 (1) GATE ME 2014 Set 2 (1) GATE ME 2012 (1) GATE ME 2002 (1) GATE ME 2001 (1) GATE ME 1994 (1) GATE ME 1991 (1) GATE ME 1989 (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