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






2. drum rotors on reaction turbines eliminates...






3. A1 - A2 - A3 - B1 - B2 and B3 A = toxicity not identified under 400ppm B = toxicity identified under 400ppm 1 = not flammable 2 = low flammable limit 3 = highly flammable






4. 1. intake 2. compression 3. power 4. exhaust






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






6. 1. compressor discharge 2. condenser 3. liquid receiver






7. 'booster' compressor






8. A verticle well is used to increase the NPSH - gives better performance and less cavitation






9. An 'overrunning' clutch






10. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter






11. Change in momentum


12. To remove and properly dispose of pollutants






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






14. Unit produces electricity on an ongoing basis






15. More rounded than impulse blading






16. Used for single acting compressors






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


18. Quantity ofr compressed air and delivered air by the compressor






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






20. Dry surface coolers - no contact convection hx - aka finned tube exchangers






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






22. 75 -000 to 100 -00 hours of operation






23. 1. activated sludge 2. rotating biological contactors 3. trickling filters






24. 1. Split 2. double






25. The utilization of one form of input energy to generate two or more forms of output energy






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






27. Entire collection of all component


28. Center- to- center distance between baffles






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






30. Use of a rotary lobe air blower






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






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






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






34. A concentrated solution at its critical point






35. Use teflon or carbon to lubricate system






36. Cannot go below -18






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






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






39. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87






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






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


42. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates






43. Straight condensing






44. 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






45. Ground water monitoring device






46. Increased efficiency due to decreased frictional losses






47. zeolite molecular sieve desiccant






48. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants






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






50. 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