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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. intake 2. compression 3. power 4. exhaust






2. Cannot go below -18






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






4. Large turbines with a generator on each shaft






5. The crankshaft and valve train






6. Used for single acting compressors






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






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






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






10. Ground water monitoring device






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






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






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






14. 'booster' compressor






15. Unit produces electricity on an ongoing basis






16. Velocity increases as passes through nozzles






17. Pressure does not drop across the moving blades






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






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






20. 1. Split 2. double






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






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






23. Nickel steel - strong fully balanced rotor - expensive






24. drum rotors on reaction turbines eliminates...






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






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






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






28. Most widely used - least amount of steam






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






30. Seperately forged discs or wheels and shrunk onto shaft






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






32. 1. Aero- derivate 2. Heavy duty






33. Requires annual review of SOPs






34. 1. compressor section 2. combustor 3. turbine section






35. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control






36. Same principle as a turbine but acting in reverse






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






38. Moving blades on a rotor






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






40. '3 ports' 1. intake and exhaust 2. compression and ignititon






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






42. Wrist pins that connect pistons to rod - retained bu circlips






43. Working fluid is compress then preheated in regenerator






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






45. Higher power and speeds






46. 1. electricial purity 2. silver nitrate - milky white






47. Overall master plan - comprehensive program






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






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






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







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