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. Reduces steam pressure and velocity in two or more steps






2. The crankshaft and valve train






3. 1. high manufacturing costs 2. slow speed changes 3. low efficiencies at low throttle






4. Means to come together and form one mass - removes oil and water from air






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






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






7. 1. internal 2. external 3. equipment vendors 4. chemical suppliers 5. office equipement vendors






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






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






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






11. drum rotors on reaction turbines eliminates...






12. Either fixed production or varying






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






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






15. Defined as one or more tube bundle - served by two or more fans complete with aux equipment






16. 1. collection system 2. seperation pond 3. flare pit 4. stabilization lagoon 5. wastewater heater 6. 1st stage aeration tank - activated sludge 7. 2nd stage aeration tank 8. clarifiers 9. polishing pond






17. Counter act force and load on thrust bearings






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






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






20. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure






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






22. Sagging and hogging - 20-40rpm






23. '3 ports' 1. intake and exhaust 2. compression and ignititon






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






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






26. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records






27. Pressure does not drop across the moving blades






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






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






30. Hydraulic cylinder or pisston on a governor






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






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






33. Used to satisfy process steam requirements






34. Too small to settle out - add floc






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






36. Does not contain dissolved oxygen






37. Each stage seperated by partitions - nozzles set into diaphragms






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






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






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






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






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






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






44. Fuel supplied firstg produces electrcial power with thermal energy as a by- product

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






46. Cool compressed air before point of use






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






48. Eliminates thrust - steam admitted midway along casing






49. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor






50. Overall master plan - comprehensive program