Hi friends
Below you can find a list of important questions for the subject Thermodynamics. These questions will give you a good idea of what to study and help you prepare well for your semester exams.
VERY SHORT QUESTIONS (2 MARKS)
Below you can find a list of important questions for the subject Thermodynamics. These questions will give you a good idea of what to study and help you prepare well for your semester exams.
VERY SHORT QUESTIONS (2 MARKS)
- Define open system and isolated system.
- What are extensive properties?
- Define Quassi static process
- Explain Zeroth law of thermodynamics
- State Boyle's law.
- Define Avogadro's law.
- Write general gas equation
- What are flow and nonflow process
- Define isentropic process
- State isobaric process
- Define isothermal process
- Define Heat source and Heat sink
- Define 1st law of thermodynamics.
- Define heat pump.
- What is real gas?
- Write Vanderwaal's gas equation.
- What is ideal gas
- What is superheated steam and wet steam?
- What is dryness fraction
- What is a boiler
- Name types of compressor
- Define radiation
- Define thermal conductivity.
- Define natural and forced convection.
- What is conduction
- Give modes of heat transfer.
- Difference b/w heat and work
- Difference b/w macroscopic and microscopic approach.
- Find mass of gas occupies 5m3 at 7 bar and 200Ã¥C. take gas constant R= 287 j/kg K.
- Difference b/w R and RU
- Prove PV=mRT
- Derive an expression for workdone in polytropic process.
- Derive an expression for workdone in isobaric process.
- What is PMM? Explain
- Give statement of 2nd law of TD
- Write short notes on Carnot cycle
- Explain Rankine cycle
- Explain any one boiler mounting or accessories.
- Give use of three boiler mountings
- Advantages of multistage compression.
- Explain axial flow compressor
- Difference b/w reciprocating and rotary compressor
- What is radiation? Explain its law
- Use of composite walls
- Explain Vanderwaal's gas equation
- 4kg of air at 400◦C expands adiabatically. The work done by the air is 236kJ and the temp. Reduced to 150◦C. Find the specific heat at constant pressure and constant volume.
- Derive an expression for work done, change in internal energy and heart transferred during isothermal process.
- A reversible heat engine receives heat from a high temp source at 150◦C and rejects heat at low temp sink at 35◦C. Calculate Carnot efficiency.
- A reversible Carnot engine converts one sixth of heat into work. When temp is reduced to 62◦C its efficiency is doubled. Find its temp of source and sink
- Explain constriction and working of Lancashire boiler.
- Derive an expression for work input in a single stage air compressor.
- Explain construction and working of Babcock and Wilcox boiler.
- A single stage air compressor required to compress 72 m3 of air per minute form 20◦C and one atm pressure to eight atm pressures. Find temp. At the end of compression, power and heat rejected. Compression process is adiabatic.
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