SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2
For the following questions answer them individually
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 131
For a pure substance in gaseous phase to be liquefied, the gas has to undergo initial cooling below the ________.
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 132
What is the CORRECT order of decrease in entropy?
(a) solid phase
(b) Liquid phase
(c) Gaseous phase
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 133
The entropy always increases for an isolated system and when the equilibrium is reached, it is ________.
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 134
A Carnot engine operates between T1 and T2. If there is an increase in source temperature by t and a decrease in sink temperature by t. How is the efficiency in both cases is related?
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 135
In a surrounding, the amount of irreversibility of a process undergone by a system is determined by ________.
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 136
In an Otto cycle, r is the compression ratio and $$ \gamma $$ is the adiabatic index.Which relation defines the air standard efficiency?
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 137
For the same operating maximum pressure and temperature, which cycle will have the highest efficiency?
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 138
The mean effective pressure of Otto cycle is given by ________.
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 139
What is the state at which phase change occurs without a change in pressure and temperature is known as?
SSC JE Mechanical Engineering 23rd Jan 2018 Shift-2 - Question 140
What value of the dryness fraction (in %) represents the dry saturated state of vapour?
