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. plate 2. channel






2. At high temperatures a material stretches






3. Control a steady backpressure - sensing element in exhuast line






4. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface






5. Refers only to specificly to the turbine section

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






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






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






9. The condenser






10. 1. sliding vane 2. rotary lobe 3. rotary screw ( convex male lobes - pulse free)






11. Cool compressed air before point of use






12. Pressure drops across the moving blades






13. Moisture removed by centrifugal force






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






15. Sagging and hogging - 20-40rpm






16. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work






17. Small pressure drop






18. Either fixed production or varying






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






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






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






22. Center- to- center distance between baffles






23. 'huff and puff' methods

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24. Working fluid is compress then preheated in regenerator






25. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters






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






27. Type of hydrometer indicating % of salt in solution






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






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






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






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






32. Rows of stationart baldes with alternating rows of moving blades






33. Each shaft needs a thrust bearing






34. Forced or induced draft






35. Meters liquid from liquid line into evaporator at a rate equal at which vaporization of liquid is occuring






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






37. Moving blades on a rotor






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






39. 'booster' compressor






40. 1. to increase steam production 2. control superheater temperatures 3. meet process demands






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






42. zeolite molecular sieve desiccant






43. 43-49 degrees C






44. Higher altitudes






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






46. To remove and properly dispose of pollutants






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






48. Air flow is upward






49. Grit chambers and screens for waster water system






50. Calcium chloride and water - -51