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






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






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






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






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

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6. 1. inlet to the convection section 2. betwen convection and radiant section 3. at radiant section outlet






7. Direct prosses applications - absorption refrigeration - heat recovery boiler






8. Up to 60-90%






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






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






11. Driving rotating equipment






12. Centrifugal pumps






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






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






15. Sagging and hogging - 20-40rpm






16. 1. lubricate sliding surfaces 2. cool bearings






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






18. 1. written 2. spoken 3. visual






19. Made of polyethylene - skimming from the surface






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






21. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations






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






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






24. Straight condensing






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






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






27. 43-49 degrees C






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






29. Help maintain definite thrust toward exhaust






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






31. 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






32. 5mm in diameter






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






34. More rounded than impulse blading






35. 1. Condensing 2. non - condensing (backpressure)






36. To remove and properly dispose of pollutants






37. 1. evaporator coil






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






39. drum rotors on reaction turbines eliminates...






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






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






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






43. Each shaft needs a thrust bearing






44. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable






45. 'booster' compressor






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






47. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads






48. Counter act force and load on thrust bearings






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






50. King valve