SSC JE Mechanical Engineering 1st March 2017 Shift-1
For the following questions answer them individually
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - 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 ______.
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - Question 112
Heat is transferred from an electric bulb by ______.
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - 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
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - 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 ______.
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - Question 115
With increase in temperature, thermal conductivity of air ______.
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - Question 116
Liquid metal having highest thermal conductivity is of _______.
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - Question 117
Minimum thermal diffusivity is of ______.
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - Question 118
Critical radius of a hollow cylinder is defined as _______.
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - 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
SSC JE Mechanical Engineering 1st March 2017 Shift-1 - Question 120
Automobile radiator is a heat exchanger of _____ type.
