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






2. Requires annual review of SOPs






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






4. drum rotors on reaction turbines eliminates...






5. Refers to the production of electricity form two sources utilizing one fuel source






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






7. 1. Flyweights 2. coutner spring 3. function based on centrifugal force






8. Working fluid is compress then preheated in regenerator






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






10. 'booster' compressor






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






12. 75 -000 to 100 -00 hours of operation






13. Seperately forged discs or wheels and shrunk onto shaft






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






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






16. Counter act force and load on thrust bearings






17. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference






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






19. Discharge steam when excessive backpressure exists






20. 1. Split 2. double






21. To remove and properly dispose of pollutants






22. zeolite molecular sieve desiccant






23. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature






24. Large turbines with a generator on each shaft






25. Recuperative category - high pressure






26. Is the ratio of the discharge pressure to the intake pressure absolute






27. The volum swept out by the piston - same through all stages






28. Reduces steam pressure and velocity in two or more steps






29. 1. increases net power 2. clean working fluid 3. cheap fuel can be used






30. Throttle body






31. Monel metal - high tensile strength - nickel copper alloy






32. Cool compressed air before point of use






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






34. As prime movers in pulp and paper industry






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






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






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






38. 0.577 times the inlet pressure






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






40. Either fixed production or varying






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






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






43. '3 ports' 1. intake and exhaust 2. compression and ignititon






44. Removal of exhaust gases by blow air through






45. Contains dissolved oxygen






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






47. Compression ignititon engines






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






49. 1. brass 2. copper 3. cupronickel






50. Small pressure drop