# Thermodynamics-1 TD-1 4th Sem/ME/5307/May 2015 Diploma Paper

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## Thermo dynamics-1 TD-1 4th SemME/ 5307/RAC/ may 2015 PAPER

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### Section a Thermodynamics-1 TD-1 4th SemME/5307/may 2015 PAPER

Temperature is a _____________ Property.

#### Temperature is a _____________ Property.

Work done in a free expansion process is ____________

#### Work done in a free expansion process is ____________

Gas laws are applicable to __________ gases.

#### Gas laws are applicable to __________ gases.

Babcock and Wilcox boiler is a ____________ tube boiler.

#### Babcock and Wilcox boiler is a ____________ tube boiler.

Second law of Thermodynamics defines _____________

#### Second law of Thermodynamics defines _____________

The value of Molar Gas constant is ____________

#### The value of Molar Gas constant is ____________

Diesel Cycle consists of following four processes _______________

#### Diesel Cycle consists of following four processes _______________

Triple point of water exists at _________ temperature and ____________ pressure.

#### Triple point of water exists at _________ temperature and ____________ pressure.

In Therosetting process _______ is constant.

#### In Therosetting process _______ is constant.

The three modes of heat transfer are _______ , __________ and ___________

### Section B :Thermodynamics-1 TD-1 4th SemME/5307/may 2015 PAPER

Differentiate between reversible and irreversible processes.

#### Comparison between reversible and irreversible processes.

Write a short note on Mollier diagram.

#### Short note on Mollier diagram.

Differentiate between Molar gas constant and Ideal gas constant.

#### Comparison between Molar gas constant and Ideal gas constant.

Compare a fire tube boiler with a water tube boiler.

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

Explain the following terms (1) Open system (2) Closed system (3) Isolated system.

#### Explain the following terms (1) Open system (2) Closed system (3) Isolated system.

For same compression ratio Otto cycle is more efficient than Diesel cycle, explain.

#### Explain For same compression ratio Otto cycle is more efficient than Diesel cycle.

Compare a reciprocating air compressor with a rotary compressor.

## Thermo dynamics-1 TD-1 4th Sem ME/ 5307/RAC/ may 2015 PAPER

### Section c :- Thermodynamics-1 TD-1 4th SemME/5307/MAY 2015 PAPER

Derive an expression for work done during an Isothermal process.

#### Expression for work done during an Isothermal process.

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

#### Construction and working of Babcock and Wilcox boiler.Â

Derive an expression for standard efficiency of an Otto cycle.

#### Expression for standard efficiency of an Otto cycle.

A vessel of capacity 4 mÂ³ has 16 kg of an ideal gas having molecular mass of 44 at a temperature of 25 ÂºC. Find the pressure of the gas in bar.

#### Vessel of capacity 4 mÂ³ has 16 kg of an ideal gas having molecular mass of 44 at a temperature of 25 ÂºC. Find the pressure of the gas in bar.

Explain two modes of heat transfer in gases, liquids and solids.

#### Two modes of heat transfer in gases, liquids and solids.

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

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### Section a Thermodynamics-1 TD-1 4th SemME/5307/Dec 2017 PAPER

Unit of gas constant is ____________ .

#### Unit of gas constant is ____________ .

One gram mole of all gasses occupies a volume of _____ At NTP.

#### One gram mole of all gasses occupies a volume of _____ At NTP.

The work done in a constant volume process is _________

#### The work done in a constant volume process is _________

In isothermal process, internal energy of gas _____________.

#### In isothermal process, internal energy of gas _____________.

The centrifugal pump works under ________ System.

#### The centrifugal pump works under ________ System.

Â The relationship between heat and work is ___________ .

#### Â The relationship between heat and work is ___________ .

An ideal gas is a gas having no force of ________ attraction.

#### An ideal gas is a gas having no force of ________ attraction.

Dryness fraction of dry steam is ____________ .

#### Dryness fraction of dry steam is ____________ .

Triple point is that point where ____________ .

#### Triple point is that point where ____________ .

Otto cycle is also known as _____________

### Section B :Thermodynamics-1 TD-1 4th SemME/5307/Dec 2017 PAPER

Explain diesel cycle?

#### Diesel cycle.

Write general uses of compressed air?

#### General uses of compressed air.

Explain Fourier Law?

#### Fourier Law.

The temperature difference on two sides of a wall measuring 5mx4m is 25Â° C. If thermal conductivity of the material of the wall is 0.0004KW/mÂ°C. Determine the thickness of the wall if the rate of heat flow is 5000KJ/hr.

#### Temperature difference on two sides of a wall measuring 5mx4m is 25Â° C. If thermal conductivity of the material of the wall is 0.0004KW/mÂ°C. Determine the thickness of the wall if the rate of heat flow is 5000KJ/hr.

What is a steady flow process?

## Thermo dynamics-1 TD-1 4th Sem ME/ 5307/RAC/ Dec 2017 PAPER

### Section c :- Thermodynamics-1 TD-1 4th SemME/5307/Dec 2017 PAPER

What do you mean by Mollier chart? What is its importance?

#### Mollier chart and its importance.

Explain constructional features and working of Lancashire Boiler and Nestler boiler?

#### Constructional features and working of Lancashire Boiler and Nestler boiler.

Â Write a comparison between centrifugal and axial flow compressor?