1
GATE PI 2017
Numerical
+1
-0
A metallic cylindrical casing of an exhaust pipe has inner radius $$50$$ $$mm$$ and wall thickness $$7$$ $$mm.$$ If the thermal conductivity of the material of the casing is $$50$$ $$W/m$$-$$K,$$ then the thermal resistance of the casing in $$K/kW$$ is ________________ (up to three decimal places).
Your input ____
2
GATE PI 2005
MCQ (Single Correct Answer)
+1
-0.3
A well machined steel plate of thickness $$L$$ is kept such that the wall temperature are $${T_h}$$ and $${T_c}$$ as shown in the figure below. A smooth copper plate of the same thickness $$L$$ is now attached to the steel plate without any gap as indicated in the figure below. The temperature at the interface is $${T_i},$$ The temperature of the outer walls are still the same at $${T_h},$$ and $${T_c}.$$ The heat transfer rates are $${q_1}$$ and $${q_2}$$ per unit area in the two cases respectively in the direction shown. Which of the following statements is correct? GATE PI 2005 Heat Transfer - Conduction Question 5 English
A
$${T_h} > {T_i} > {T_c}$$ and $${q_1} < {q_2}$$
B
$${T_h} < {T_i} < {T_c}$$ and $${q_1} = {q_2}$$
C
$${T_h} = \left( {{T_i} + {T_c}} \right)/2$$ and $${q_1} > {q_2}$$
D
$${T_i} < \left( {{T_h} + {T_c}} \right)/2$$ and $${q_1} > {q_2}$$
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12