EASWARI ENGINEERING COLLEGEDEPARTMENT OF MECHANICAL ENGINEERING

185204-BCM-QUESTION BANK

UNIT III POWER PLANT ENGINEERING

TWO MARKS QUESTIONS1. What is power plant?2. Differentiate between renewable and non renewable source of

energy3. Name the different types of power plants.4. What is the principle of steam power plant?5. What are the main circuits of steam power plant?6. Give the function of condenser in steam power plant.7. State the function of economizer.8. What is the function of air-pre heater?9. What is cooling tower? Give its uses.10. What is the principle of hydro electric power plant.11. List any four factors to be considered for selecting a hydro

electric power plant. (Ans: Availability of water, Water storage, Water Head, Distance from load centre)

12. Differentiate between Tail race and Head race.13. What are the types of hydro electric power plant?14. What is the function of hydraulic turbine?15. Name the hydraulic turbines used in hydel power plants16. What is penstock? How does it differ from pressure tunnel?17. What is the function of a surge tank?18. What do you mean by a draft tube?19. What is meant by nuclear fission?20. What is the principle of nuclear power plant?21. What are the fuels used in a nuclear power plant?22. What is the function of moderator?23. What is the function of a control rod? Also name few

control rod materials.24. What is the use of reflector? Also name few reflector

materials.25. What is the use of radiation shield?26. Name four types of nuclear reactors used in nuclear power

plants.27. What is the function of gas turbine power plant?28. What are intercoolers?29. What is the use of regenerator?30. Differentiate between open cycle and closed cycle gas

turbine power plants.31. What is a diesel engine power plant?

32. Which type of power plants are used as peak load power plants? Why?

33. Mention the applications of diesel engine power plant.34. What do you mean by a pump?35. Classify reciprocating pump.36. Define Priming37. Define slip in reciprocating pump38. What is the effect of cavitation in centrifugal pump?39. Differentiate between reciprocating pump and centrifugal

pump.40. What are the classifications of a steam turbine?41. Classify hydraulic turbine.42. Differentiate between impulse and reaction turbine.

PART B QUESTIONS

1. What do you under stand by thermal power plant? With a neat sketch explain the working of a steam power plant using coal as a fuel.

2. What is hydel energy? With a neat layout of a hydel power plant, describe its working. Also state its advantages and disadvantages.

3. What do you understand by nuclear energy? Explain the working of a nuclear power plant with the simple sketch.

4. Compare and contrast between steam, hydro and nuclear power plants.

5. Give the layout of a simple gas turbine power plant and explain its working principle. List out its advantages and disadvantages.

6. Explain the working of a diesel power plant with a simple sketch. Also bring outs its advantages and disadvantages.

7. Explain the working principle of a reciprocating pump with a neat sketch.

8. Discuss with a neat sketch the working principle of a centrifugal pump.

9. Explain the working principle of a impulse turbine.10. Explain the working principle of a Reaction turbine.

UNIT IV IC ENGINES

TWO MARKS QUESTIONS

1. What is an internal combustion engine?2. What is an external combustion engine?3. How IC engines are classified?4. List out any six components of an IC engines.5. What is called four stroke engines?6. What is called two stroke engines?

7. Differentiate between clearance volume and swept volume.8. Define the term compression ratio.9. What do you mean by TDC and BDC?10. What is the function of i) crank shaft ii) Piston pin or

gudgeon pin iii) cam iv) flywheel v) carburetor vi) cylinder casing 11. Differentiate between spark plug and fuel injector.12. Why diesel engines have a higher compression ratio?13. Differentiate between two stroke and four stroke engines.14. Draw otto cycle and diesel cycle15. What do you mean by scavenging in IC engines?16. What is a steam generator?17. How are boilers classified?18. Differentiate between fire tube and water tube boilers.19. What is high pressure boiler? Give example.20. What are boiler mountings? Give examples.21. What are boiler accessories? Give examples.22. What is the function of a fusible plug?23. What is the function of a economiser?24. What is the function of a air pre-heater?25. What is the function of a superheater?

PART B QUESTIONS

1. With a neat sketch, explain the various parts in IC engine2. Explain with the neat sketch the working of a four stroke

diesel engine?3. Explain with the neat sketch the working of a two stroke

diesel engine?4. Explain with the neat sketch the working of a four stroke

petrol engine?5. Explain with the neat sketch the working of a two stroke

petrol engine?6. Compare and contrast a SI engine with a CI engine.7. Compare and contrast a four stroke engine with a two stroke

engine.8. Differentiate between fire tube and water tube boiler.9. Explain the construction of a Cochran boiler with a neat

sketch.10. Explain the construction of a Babcock and Wilcox boiler

with a neat sketch.11. Explain the construction of a Benson boiler with a neat

sketch.12. With a neat sketch explain the working principle of la-

mount boiler

UNIT V REFRIGERATION AND AIR- CONDITIONING

TWO MARKS QUESTIONS

1. Define Refrigeration, Refrigerator, and Refrigerant.2. State second law of thermodynamics.3. What is the principle of refrigeration?4. List some properties of a good refrigerant.5. Define Latent heat, sensible heat6. Define Refrigerating effect.7. Define capacity of refrigeration.8. Define Ton of refrigeration.9. Define COP.10. List the types of refrigerators.11. Write short notes on R12 and R22.12. Name the essential components of Vapour

compression refrigeration system.13. Name the essential components of Vapour

absorption refrigeration system.14. What is the function of Compressor, condenser,

expansion valve, evaporator?15. What is the function of generator, absorber in vapour

absorption refrigeration system?16. List out the applications of refrigeration.17. What is air- conditioning?18. Differentiate refrigerator and air conditioning.19. What is psychrometry?20. Define DBT and WBT.21. Define relative humidity and specific humidity. 22. Differentiate between dry air, moist air, and

saturated air.23. Define the following i) sensible heating ii) sensible

cooling iii) humidification iv) dehumidification24. List out the types of air conditioning.25. What do you mean by summer air conditioning?26. What do you mean by winter air conditioning?27. Define year-round air-conditioning.28. Differentiate window and split air conditioning29. Mention four applications of air conditioning.

PART B QUESTIONS

1. Explain the principle of refrigeration and discuss the main parts of a refrigerator.

2. Explain the principle of vapour compression refrigeration system with a neat sketch.

3. Explain the principle of vapour absorption refrigeration system with a neat sketch.

4. Compare and contrast the vapour compression refrigeration system with the vapour absorption refrigeration system.

5. Draw a neat sketch of a window air- conditioner and explain its working principle.

6. Draw a neat sketch of a split air- conditioner and explain its working principle.