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Power Engineering 2

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 1. compressor discharge 2. condenser 3. liquid receiver






2. More rounded than impulse blading






3. The condenser






4. 1. Split 2. double






5. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8






6. Cause high discharge pressures - more power requirements - reduces capacity






7. King valve






8. Reduces steam pressure and velocity in two or more steps






9. Higher power and speeds






10. Made of polyethylene - skimming from the surface






11. A verticle well is used to increase the NPSH - gives better performance and less cavitation






12. Very high speed with extremely high centrigufal force and high frictional losses






13. Refers only to specificly to the turbine section

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14. Compression ignititon engines






15. A1 - A2 - A3 - B1 - B2 and B3 A = toxicity not identified under 400ppm B = toxicity identified under 400ppm 1 = not flammable 2 = low flammable limit 3 = highly flammable






16. Atmospheric or hyperbolic






17. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface






18. Use teflon or carbon to lubricate system






19. Seperately forged discs or wheels and shrunk onto shaft






20. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily






21. Equal and opposite reation

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22. Straight condensing






23. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration






24. Needs to a high vacuum present in system before charging






25. Grit chambers and screens for waster water system






26. 1. compression ration across compressor 2. turbine inlet temperature






27. 1. air compressed to 1100-3000kPa 2. combustion at 2000C 3. mixed with air - cooled to 918C on exit 4. combustor gases go to turbine 5. gases from turbine leave at atmospheric pressure and 500-640C






28. 1. lubricate sliding surfaces 2. cool bearings






29. Unit produces electricity on an ongoing basis






30. Pressure does not drop across the moving blades






31. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines






32. Small pressure drop






33. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable






34. The volum swept out by the piston - same through all stages






35. Removal of exhaust gases by blow air through






36. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic






37. Recuperative category - high pressure






38. Controlled pressure from intermediate stages of turbine






39. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer






40. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices






41. 1. CCME 2. CEQG 3. CWQG 4. US EPA






42. 1. better than gantt chart 2. establishes feasible sequence 3. timetable 4. spare time plotted 5. critical activities 6. use of arrow diagrams 7. event (aka nodes) - a situation that occurs after a completed activity 8. schedule manpower efficiently






43. 'booster' compressor






44. No dissolved oxygen but does contain nitrates






45. Means to come together and form one mass - removes oil and water from air






46. The utilization of one form of input energy to generate two or more forms of output energy






47. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%






48. 1. Condensing 2. non - condensing (backpressure)






49. Discharge steam when excessive backpressure exists






50. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants