SSC JE Mechanical Engineering 23rd Jan 2018 Shift-1
For the following questions answer them individually
In a P-V diagram for pure substance, the constant temperature line in superheated region is ________.
Which equation clearly defines the entrophy change during the isothermal process for a system with m kg of gas at pressure $$P_{1}$$ and the $$volume V_{1}$$, temperature $$T_{1}$$ and the entrophy $$S_{1}$$ is heated to state points of pressure $$P_{2}$$ , Volume $$V_{2}$$ and temperature $$T_{2}$$ and Entrophy $$ S_{2} $$?
The entropy change of the system and the surroundings during a process between two equilibrium states is ________.
A Carnot heat pump is used to maintain a room at a temperature of 300C , the initial temperature of the room was 300C. If the power requirement of the pump is 20 kW. What is the heat pumped (in kW) to the room?
What happens to the efficiency, when the temperature of intake air is lowered in an I.C engine?
For a process which is non-flow (U is the internal energy, Q is the heat and W is the work done) the first law of thermodynamics states ________.
In a P-T diagram for pure substance, the melting line has highest inclination with respect to the positive horizontal axis representing temperature for which type of substance?
