1
GATE ME 2024
MCQ (Single Correct Answer)
+1
-0.33

A plane, solid slab of thickness L, shown in the figure, has thermal conductivity k that varies with the spatial coordinate x as k = A + Bx, where A and B are positive constants (A > 0, B > 0). The slab walls are maintained at fixed temperatures of T(x = 0) = 0 and T(x = L) = T0 > 0. The slab has no internal heat sources. Considering one-dimensional heat transfer, which one of the following plots qualitatively depicts the steady-state temperature distribution within the slab?

GATE ME 2024 Heat Transfer - Conduction Question 2 English
A
GATE ME 2024 Heat Transfer - Conduction Question 2 English Option 1
B
GATE ME 2024 Heat Transfer - Conduction Question 2 English Option 2
C
GATE ME 2024 Heat Transfer - Conduction Question 2 English Option 3
D
GATE ME 2024 Heat Transfer - Conduction Question 2 English Option 4
2
GATE ME 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
A plastic sleeve of outer radius $${r_0} = 1\,\,mm$$ covers a wire (radius $$r = 0.5$$ $$mm$$) carrying electric current. Thermal conductivity of the plastic is $$0.15\,\,W/m$$-$$K$$. The heat transfer coefficient on the outer surface of the sleeve exposed to air is $$25$$ $$W/{m^2}$$-$$K$$. Due to the addition of the plastic cover, the heat transfer from the wire to the ambient will
A
increases
B
remain the same
C
decreases
D
be zero
3
GATE ME 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
A hollow cylinder has length $$L,$$ inner radius $${{r_1}}$$, outer radius $${{r_2}}$$, and thermal conductivity $$k.$$ The thermal resistance of the cylinder for radial conduction is
A
$${{ln\left( {{r_2}/{r_1}} \right)} \over {2\pi kL}}$$
B
$${{ln\left( {{r_1}/{r_2}} \right)} \over {2\pi kL}}$$
C
$${{2\pi kL} \over {ln\left( {{r_2}/{r_1}} \right)}}$$
D
$${{2\pi kL} \over {ln\left( {{r_1}/{r_2}} \right)}}$$
4
GATE ME 2016 Set 3
Numerical
+1
-0
Steady one-dimensional heat conduction takes place across the faces $$1$$ and $$3$$ of a composite slab consisting of slabs $$A$$ and $$B$$ in perfect contact as shown in the figure, where $${k_A},\,\,{k_B}$$ denote the respective thermal conductivities. Using the data as given in the figure, the interface temperature $${T_2}$$ $$\left( {in\,{\,^ \circ }C\left. \, \right)} \right.$$ is ______________. GATE ME 2016 Set 3 Heat Transfer - Conduction Question 30 English
Your input ____
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12