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






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






3. Up to 60-90%






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






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






6. Used for single acting compressors






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






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






9. 1. verticle cyclinder 2. cabin heater 3. central tube wall






10. Large turbines with a generator on each shaft






11. Removal of exhaust gases by blow air through






12. No dissolved oxygen but does contain nitrates






13. Discharge steam when excessive backpressure exists






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






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






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






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






18. 1. activated sludge and primary sludge combined 2. heated to 37C 3. sits for 25 days 4. anaerobic bacteria breaks down organic contents 5. produces useable gases for waste heat






19. 1. better than gantt chart 2. establishes feasible sequence 3. timetable 4. spare time plotted 5. critical activities 6. use of arrow diagrams 7. event (aka nodes) - a situation that occurs after a completed activity 8. schedule manpower efficiently






20. Change in momentum

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






22. Most widely used - least amount of steam






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






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






25. 1. plate 2. channel






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






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






28. Air flow is upward






29. Recuperative category - high pressure






30. Cannot go below -18






31. Forced or induced draft






32. 43-49 degrees C






33. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs






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






35. Polymers (polyelectrolytes)






36. Type of hydrometer indicating % of salt in solution






37. 1. contact - 'jet' 2. surface






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






39. Direct contact type - uses converging nozzles and in moderate vacuum






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






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






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






43. To remove and properly dispose of pollutants






44. Pressure does not drop across the moving blades






45. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy

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46. 1. spray 2. fog 3. special evaporator pads






47. Straight condensing






48. Centrifugal pumps






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






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