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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. compressor discharge 2. condenser 3. liquid receiver






2. Use of a rotary lobe air blower






3. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control






4. A concentrated solution at its critical point






5. Dry surface coolers - no contact convection hx - aka finned tube exchangers






6. No dissolved oxygen but does contain nitrates






7. Integral part of the governing system - in the front end and engages at 10-12% above normal operating speed






8. Each shaft needs a thrust bearing






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






10. Moving blades on a rotor






11. Use antifriction bearings






12. The space wherein the liquid refrigerant absorbs heat and boils






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






14. Air flow is horizontal






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






16. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust






17. Refers only to specificly to the turbine section

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18. Made of polyethylene - skimming from the surface






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






20. Change in momentum

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






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






23. 5mm in diameter






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






25. Too small to settle out - add floc






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






27. Air drawn from atmosphere - working fluid






28. Up to 60-90%






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






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






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






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






33. Hydraulic cylinder or pisston on a governor






34. Increased efficiency due to decreased frictional losses






35. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations






36. Pressure does not drop across the moving blades






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






38. Removal of exhaust gases by blow air through






39. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices






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






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






42. Refers to the production of power during overload demands






43. 1. can - annular 2. annular 3. single- can






44. Help maintain definite thrust toward exhaust






45. Use teflon or carbon to lubricate system






46. Velocity increases as passes through nozzles






47. Straight condensing






48. Pressure drops across the moving blades






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






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







Sorry!:) No result found.

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