SSC JE Mechanical Engineering 1st March 2017 Shift-1
Instructions
For the following questions answer them individually
Question 111
The process of heat transfer from a hot body to a cold body in a straight line, without affecting the intervening medium, is known as ______.
Question 113
Assumption made in the Fourier's law is that the heat flow
A. Is in steady state
B. Through a solid medium in one dimension
Question 114
If thermal conductivity of a material of wall varies as $$K_0 (1 + \alpha t)$$, then the temperature at the centre of the wall as compared to that in case of constant thermal conductivity, will be ______.
Question 119
Heat exchangers are used in
A. Condensers and boilers in steam plants
B. Radiators
C. Intercoolers and preheaters
D. Condensers and evaporators in refrigerators and air conditioners
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