Previous year question paper for TE1 (Diploma Mechanical Engineering 3rd)

1. Basic Concepts and Gas Laws (04 hrs)

1.1 Gas laws: Boyle's law, Charle's law, Avogadro’s Law and Gay Lussacs Law

1.2 Characteristics equation, Gas constant, Universal gas constant.

1.3 Thermodynamics, property (system open and closed), surroundings, Heat and

work, specific heats and their relationship,

2. Laws of Thermodynamics (10hrs)

2.1 Explanation of the Zeroth law of thermodynamics.

2.2 Explanation of First Law of Thermodynamics.

2.3 Concept of enthalpy, internal energy, specific heat, work and heat.

2.4 Clausius and Kelvin Plank statements of second law of thermodynamics.

2.5 Concept of Entropy

2.6 Constant Volume, Constant pressure, Isothermal, adiabatic and polytropic

processes, Throttling and free Expansion, work done under these processes.

3. Formation of Steam and its Properties (08 hrs)

 3.1 Steam Formation

3.2 Wet steam, dry steam and saturated steam; 

4. Steam Generator (06 hrs)

4.1 Uses of steam

4.2 Classification of boilers

4.3 Boiler mounting and accessories

4.4 Comparison of fire tube and water tube boilers.

4.5 Constructional features of Nestler boiler, Babcock and Wilcox boiler.

4.6 Introduction to modern boilers

5. Nozzles and Steam Turbines (08hrs)

5.1 Energy equation as applied to a nozzle

5.2 Description of various types of turbines

5.3 Methods of reducing rotor speed in impulse turbines

5.4 Governing of steam turbines

6. Non Conventional Sources Of Energy (06 hrs)

6.1 Need of non conventional energy sources

6.2 Solar Energy

6.3 Sun and solar radiation

6.4 Solar constant

6.5 Solar collectors-flat plate collectors and focusing collectors

6.6 Solar heating-solar cooker, solar power generation and Solar cooling

6.7 Photo voltaic cells

6.8 Industrial and agricultural application of a solar energy

6.9 Economic consideration for use of solar energy.

6.10 Other Non Conventional Energy Sources:

6.11 Wind Power

6.12 Geothermal energy

7. Elements Of Heat Transfer (06 hrs)

7.1 Conduction

7.2 Convection

7.3 Radiation 

15

7.4 Stefan Boltzman's law

 Simple problems of heat transfer on conduction and radiation only.