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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. high power to weight ration 2. use of different liquids and gaseous fuels 3. start rapidly 4. simple and compact design 5. reliable 6. remote operation






2. Used to satisfy process steam requirements






3. Change in momentum

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4. Cool compressed air before point of use






5. Centrifugal pumps






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






7. 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






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






9. Has steam directed through baffles making 4 passes






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






11. Removal of exhaust gases by blow air through






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






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






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






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






16. On the exhaust side - drives the blower - being connected to the same shaft - increases power by 50-70% as more air is forced into the engine






17. 1. convergent 2. convergent- divergent






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






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






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






21. 0.577 times the inlet pressure






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






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






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






25. Driving rotating equipment






26. King valve






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






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






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






30. The crankshaft and valve train






31. A thrust block that enables the axial position of the rotor to be controlled






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






33. Use of a rotary lobe air blower






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






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






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






37. 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






38. Moving blades on a rotor






39. Increased efficiency due to decreased frictional losses






40. 1. planning 2. implementation 3. review






41. 1. Split 2. double






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






43. 1. use clean burning fuels 2. less fuel being used - saving energy reserves 3. electrical production onsite lowers construction demands for new sites and reduces transmission line power losses






44. 1. lubricate sliding surfaces 2. cool bearings






45. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced






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






47. Most widely used - least amount of steam






48. Air drawn from atmosphere - working fluid






49. Too small to settle out - add floc






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