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. More rounded than impulse blading






2. Removal of exhaust gases by blow air through






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






4. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases






5. 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






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






7. Attempting to pick up a load - turbines in parallel






8. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8






9. Use teflon or carbon to lubricate system






10. 1. large volumes of air 2. simple and rugged 3. low maintenance






11. Cool compressed air before point of use






12. Air flow is upward






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






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






15. Use of a rotary lobe air blower






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






17. Small pressure drop






18. To remove and properly dispose of pollutants






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






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






21. zeolite molecular sieve desiccant






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






23. 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






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






25. Centrifugal pumps






26. Air drawn from atmosphere - working fluid






27. Very high speed with extremely high centrigufal force and high frictional losses






28. Compression ignititon engines






29. Working fluid is compress then preheated in regenerator






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






31. Entire collection of all component

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32. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding






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






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






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






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






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






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






39. At high temperatures a material stretches






40. KW at 15C standard at sealevel with 60% RH






41. Condensing turbines exhaust steam at...






42. Velocity increases as passes through nozzles






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






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

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45. Help maintain definite thrust toward exhaust






46. DLN - reduce NOx down to 9ppm but have an increased combustion area






47. 1. lubricate sliding surfaces 2. cool bearings






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






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






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