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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. Small clearances between discs on shaft to...






2. Quantity ofr compressed air and delivered air by the compressor






3. Have advantage of high efficiencies - 10% greater than centrifugal compressors






4. Nickel steel - strong fully balanced rotor - expensive






5. Higher power and speeds






6. 1. activated sludge and primary sludge combined 2. heated to 37C 3. sits for 25 days 4. anaerobic bacteria breaks down organic contents 5. produces useable gases for waste heat






7. Seperately forged discs or wheels and shrunk onto shaft






8. 1. internal 2. external 3. equipment vendors 4. chemical suppliers 5. office equipement vendors






9. 1. high power to weight ration 2. use of different liquids and gaseous fuels 3. start rapidly 4. simple and compact design 5. reliable 6. remote operation






10. Entire collection of all component

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11. 1. inlet to the convection section 2. betwen convection and radiant section 3. at radiant section outlet






12. Ground water monitoring device






13. A group of one or more bays - including one or more units arranged in a single or continuous structure






14. Help maintain definite thrust toward exhaust






15. Requires annual review of SOPs






16. Higher altitudes






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






18. 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






19. An 'overrunning' clutch






20. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based






21. 1. list of all equipment 2. PM checklist 3. fequency 4. repairs and costs 5. record keeping 6. cost management






22. Calcium chloride and water - -51






23. Driving rotating equipment






24. Admirally brass or Munte metal - 25-40mm thick






25. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases






26. 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






27. Atmospheric or hyperbolic






28. Contains dissolved oxygen






29. Increase pressure affecting performance of condenser but do not incresase temperature






30. 1. lubricate sliding surfaces 2. cool bearings






31. Steam expands and pressure drops as it passes through moving blades - unbalance pressure






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






33. 1. increases net power 2. clean working fluid 3. cheap fuel can be used






34. Is the ratio of the discharge pressure to the intake pressure absolute






35. Refers only to specificly to the turbine section

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36. Throttle body






37. More rounded than impulse blading






38. Too small to settle out - add floc






39. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor






40. Refers to the production of electricity form two sources utilizing one fuel source






41. Counter act force and load on thrust bearings






42. Has steam directed through baffles making 4 passes






43. Does not contain dissolved oxygen






44. Used for single acting compressors






45. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices






46. Attempting to pick up a load - turbines in parallel






47. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure






48. Control a steady backpressure - sensing element in exhuast line






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






50. 1. individual pump system 2. distributor system 3. common rail system






Can you answer 50 questions in 15 minutes?



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