List of top Mechanical Engineering Questions on Thermodynamics asked in TANCET

The following options represent the work done (W) and heat transfer (Q) relations for the various thermodynamic processes. Identify the INCORRECT option.
[Consider \( c_v, c_p \) - specific heats at constant volume and constant pressure respectively, \( p \)- pressure, \( v, v_1, v_2 \) - specific volumes of working fluid, \( T_1, T_2 \) - temperature at starting and end of the process.]
All of the following options describe the availability and unavailable energy of a system EXCEPT:
Air enters the compressor at 100 kPa and 25°C having the volume of 1.8 m3/kg and compressed to 5 bar isothermally. The change in internal energy during the process is
The following equation is equal to the value of \[ \left( \frac{\partial T}{\partial V} \right)_P \left( \frac{\partial V}{\partial T} \right)_P \left( \frac{\partial P}{\partial V} \right)_T = ? \]
Consider the indicator diagram for the heat engine as shown in the following figure. If the heat rejected by the engine to a heat sink is 1250 kJ/kg, the thermal efficiency (by considering one decimal place) of the engine is:
heat engine
For the same maximum pressure and same heat input in the air standard cycles, which of the following option is CORRECT?
In a Vapour Compression Refrigeration System (VCRS), if throttle valve is replaced with expansion cylinder, the COP will
Consider the h-s diagram for the Rankine Cycle as shown in Figure. According to the h-s diagram, which of the following steady flow devices is responsible for process 3-4? 
Rankine Cycle
A heat pump operates on Carnot cycle pumps heat from a reservoir at 27°C to 327°C. The Coefficient of performance is
If SH, LH represents Sensible Heat and Latent Heat respectively, then identify the CORRECT relation for Sensible Heat Factor (SHF) from the given options.