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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. Equal and opposite reation

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






3. DLN - reduce NOx down to 9ppm but have an increased combustion area






4. Simple generator - light - no battery - hotter spark at higher speeds






5. Radiator type






6. Pressure drops across the moving blades






7. Cast with special nickel based alloys - Inconel - Udimet - Waspalloy - Hastelloy






8. Air flow is horizontal






9. Made of cast iron and support by stay bolts to protect against a vacuum






10. 1. Responsive to speed changes 2. responsive to pressurre changes






11. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles






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






13. Driving rotating equipment






14. Too small to settle out - add floc






15. Polymers (polyelectrolytes)






16. Chrome- iron alloy






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






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






19. Most widely used - least amount of steam






20. Countries with small grids or specail grid requirements - has a high efficiency at base loads






21. Grit chambers and screens for waster water system






22. Use of a rotary lobe air blower






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






24. Removal of exhaust gases by blow air through






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






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






27. Up to 60-90%






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






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






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






31. 1. lubricate sliding surfaces 2. cool bearings






32. 1. activated sludge 2. rotating biological contactors 3. trickling filters






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






34. 5mm in diameter






35. 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






36. Higher power and speeds






37. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting






38. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost






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






40. 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






41. Use teflon or carbon to lubricate system






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






43. Results in a gain in velocity - the moving blades change direction producing force






44. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing






45. Center- to- center distance between baffles






46. 1. contact - 'jet' 2. surface






47. A concentrated solution at its critical point






48. The difference between the no- load and full- load speed - expressed as a %






49. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades






50. 1. Carbon ring 2. labyrinth seal 3. water seal







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Can you answer 50 questions in 15 minutes?


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