SSC JE Mechanical Engineering 23rd Jan 2018 Shift-1
For the following questions answer them individually
Which of the following graphs represents working of an ideal Diesel cycle on p-V scale?
The work done by a system is 45 kJ. If the internal energy of the system is decreased by 15 kJ. What is the heat received (in kJ) by the system?
The internal energy of the system is a function of temperature only U=30+0.5t kJ. If the system does the work of 0.5 kJ/K. What is the increase in heat interaction per degree temperature?
2500 kJ/min heat is supplied to a heat engine at $$727^\circ$$ C. It rejects heat at 900 kJ/min at $$223^\circ$$ C. This type of engine is ________
What happens to the COP of a heat pump, when the temperature difference between source and sink is decreased?
If two Carnot engine CE1 and CE2 are connected in a series such that the heat rejected by CE1 is used as the input for the CE2 cycle with the intermediate temperature being the geometric mean of the extreme temperatures. Which of the following statement is TRUE for this efficiency of the Carnot engine?
What type of slopes does constant pressure line have in the superheated region of the Mollier diagram?
