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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. verticle cyclinder 2. cabin heater 3. central tube wall






2. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm






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






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






5. Non - condensing turbine exhaust steam at...






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






7. Used for single acting compressors






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






9. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates






10. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)






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






12. Up to 60-90%






13. 1. plate 2. channel






14. Use of a rotary lobe air blower






15. 1. large volumes of air 2. simple and rugged 3. low maintenance






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






17. Change in direction causing a turbine to move






18. 5mm in diameter






19. Pressure drops across the moving blades






20. The condenser






21. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity






22. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function






23. 'huff and puff' methods

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24. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature






25. KW at 15C standard at sealevel with 60% RH






26. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records






27. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing






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






29. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs






30. The change in sped that resutls from an increase in load






31. Higher power and speeds






32. 1. Aero- derivate 2. Heavy duty






33. Ground water monitoring device






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






35. A thrust block that enables the axial position of the rotor to be controlled






36. 1. widely used 2. single stage 3. impulse turbine






37. 1. simple design 2. less piping 3. no freezing hazard






38. No dissolved oxygen but does contain nitrates






39. Overall master plan - comprehensive program






40. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips






41. Same principle as a turbine but acting in reverse






42. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact






43. Throttle body






44. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve






45. 1. spray 2. fog 3. special evaporator pads






46. 1. intake 2. compression 3. power 4. exhaust






47. Recuperative category - high pressure






48. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)






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






50. Contains dissolved oxygen







Sorry!:) No result found.

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