Q.1. Write short notes on any TWO of the following:

Â Â Â Â Â Â Â Â  (a) FuelÂ  systemÂ Â Â  (b)Â  Combustion Â Â Â (c) Dissociation ( d ) Supercharging Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â  ( 7,7)Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â Â

Q.2 Define thermodynamics. Discuss briefly the scope, nature, and fields of applications of thermodynamics.Â  Â  Â ( 14 )

Q.3. Explain, briefly, the following terms used in thermodynamics: ThermodynamicsÂ  System,Â  Surroundings,Â Boundary and State variables.Â  Â  Â  Â ( 14 )

Q.4. Describe the principle of a working of aÂ  4 â€“ strokeÂ  PETROLÂ  ENGINEÂ  with the help of neat diagrams.Â  Â  Â  Â  ( 14 )

Q.5. Discuss in brief the various strokes in the working of a DIESEL ENGINE with the help of neat diagrams.Â  Â  Â  ( 14 )

Q.6. Explain the construction and function of a single stage reciprocating air compressor with the help of a neatÂ diagram.Â  ( 14 )

Q.7. A combustible mixture of carbon monoxide and air which is ( 10 â„…Â  ) rich is compressed to a pressure of (8.28 bar ) and a temperature ofÂ  ( 282 o C ). The mixture is ignited and combustion occurs adiabatically at constant volume

. When the maximum temperature is attained analysis showsÂ  ( 0.22 kmol ) ofÂ  ( CO )

Â Â Â Â Â Â Â  present for (1 kmol )Â  ofÂ  (CO )Â  supplied. Show that the maximum temperature reached is ( 2695 o C ). (14)

Q.8. Show that the thermal efficiency of the dual combustion cycle depends on the compression ratio and theÂ o the relative amounts of heat supplied at constant volume and at constant pressure.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â  (14 )

Advance Thermodynamics Past Papers and important Questions