Test your basic knowledge |

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. electricial purity 2. silver nitrate - milky white






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






3. Discharge steam when excessive backpressure exists






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






5. 1. collection system 2. seperation pond 3. flare pit 4. stabilization lagoon 5. wastewater heater 6. 1st stage aeration tank - activated sludge 7. 2nd stage aeration tank 8. clarifiers 9. polishing pond






6. More rounded than impulse blading






7. On the exhaust side - drives the blower - being connected to the same shaft - increases power by 50-70% as more air is forced into the engine






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






9. Atmospheric or hyperbolic






10. Change in momentum

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11. Entire collection of all component

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






13. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell






14. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston






15. Each stage seperated by partitions - nozzles set into diaphragms






16. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled






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






18. Small clearances between discs on shaft to...






19. Polymers (polyelectrolytes)






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






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






22. Controlled pressure from intermediate stages of turbine






23. Same principle as a turbine but acting in reverse






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






25. Higher altitudes






26. Used to satisfy process steam requirements






27. 1. brass 2. copper 3. cupronickel






28. Moving blades on a rotor






29. 1. thrust bearings 2. dummy pistions 3. thrust adjusting gear






30. 1. lubricate sliding surfaces 2. cool bearings






31. 1. control range of 0 to 100% load 2. energy efficient






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






33. Working fluid is compress then preheated in regenerator






34. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy

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35. Air flow is upward






36. Large turbines couple together on a single shaft applied to one generator






37. Contains 0.5kg of moisture for every 28 cubic meter of air






38. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method






39. Condensing turbines exhaust steam at...






40. At high temperatures a material stretches






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






42. Driving rotating equipment






43. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads






44. Servomotors






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






46. One or more tube bundles - in one or more bays for an individual service or process






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






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






49. 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






50. Centrifugal pumps