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## Thermo dynamics-1 TD-1 4th SemME/ 5307/RAC/ may 2018 PAPER

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### Section a Thermodynamics-1 TD-1 4th SemME/5307/may 2018 PAPER

Temperature is ___________ property.

#### Temperature is ___________ property.

The Carnot cycle comprises of two ________ and two processes.

#### The Carnot cycle comprises of two ________ and two processes.

Dryness fraction of dry stream is ______________

#### Dryness fraction of dry stream is ______________

Otto cycle is also known as __________ cycle.

#### Otto cycle is also known as __________ cycle.

In a water tube boiler __________ Flows through tubes.

#### In a water tube boiler __________ Flows through tubes.

During an Isentropic process ________ is constant.

#### During an Isentropic process ________ is constant.

Conduction mainly occurs in ____________

#### Conduction mainly occurs in ____________

The unit of pressure in SI system is ______________

#### The unit of pressure in SI system is ______________

___________ Water is used for boiler.

#### ___________ Water is used for boiler.

The work done during constant volume process is ___________________

### Section B :Thermodynamics-1 TD-1 4th SemME/5307/may 2018 PAPER

State Boyle\’s Law and Avogadro\’s Law.

#### Boyle’s Law and Avogadro’s Law.

Explain briefly three basic modes of heat transfer.

#### Three basic modes of heat transfer.

Compare a fire tube boiler and a water tube boiler.

#### Compare a fire tube boiler and a water tube boiler.

Explain the difference between dry steam and wet steam.

#### Difference between dry steam and wet steam.

State Kelvin Plank\’s statement of second law of thermodynamics.

#### Kelvin Plank’s statement of second law of thermodynamics.

Compare a reciprocating air compressor with a rotary compressor

#### Compare a reciprocating air compressor with a rotary compressor.

Discuss open system, closed system and isolated system with neat sketch.

#### Open system, closed system and isolated system with neat sketch.

Write uses of compressed air.

## Thermo dynamics-1 TD-1 4th Sem ME/ 5307/RAC/ Dec 2018 PAPER

### Section c :- Thermodynamics-1 TD-1 4th SemME/5307/may 2018 PAPER

Explain construction and working of Babcock and Wilcox boiler with a neat sketch.

#### Construction and working of Babcock and Wilcox boiler with a neat sketch.

Explain formation of steam with neat sketch.

#### Formation of steam with neat sketch.

Write a short note on i. Fourier Law

#### Short note on i. Fourier Law

Write a Short Note ii. Diesel Cycle

#### Short Note ii. Diesel Cycle

Short Note on iii. Dryness Fraction

#### iii. Dryness Fraction

A gas is compressed polytropically from its initial volume of 0.67 m3 and pressure of 2 bars to a final pressure of 30 bars. If the initial temperature of the gas is 40oC, Find: i. Final Volume ii. Final temperature iii. Work to be done on the gas for compression. Take value of polytropic index as 1.2.

#### Gas is compressed polytropically from its initial volume of 0.67 m3 and pressure of 2 bars to a final pressure of 30 bars. If the initial temperature of the gas is 40oC, Find:i. Final Volumeii. Final temperatureiii. Work to be done on the gas for compression. Take value of polytropic index as 1.2.

Derive an expression for efficiency of an otto cycle.