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






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






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






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






5. Large turbines with a generator on each shaft






6. Atmospheric or hyperbolic






7. Air drawn from atmosphere - working fluid






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






9. 1. kettle 2. thermosyphon horizontal 3. thermosyphon vertical






10. 1. Split 2. double






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






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






13. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices






14. Either fixed production or varying






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






16. Polymers (polyelectrolytes)






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






18. Help maintain definite thrust toward exhaust






19. 5mm in diameter






20. 1. to increase steam production 2. control superheater temperatures 3. meet process demands






21. 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






22. Same principle as a turbine but acting in reverse






23. Small pressure drop






24. One or more tube bundles - in one or more bays for an individual service or process






25. 43-49 degrees C






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






27. Cause high discharge pressures - more power requirements - reduces capacity






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






29. Use antifriction bearings






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






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






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






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






34. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact






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






36. Cannot go below -18






37. 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






38. 1. convergent 2. convergent- divergent






39. Higher altitudes






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






41. Center- to- center distance between baffles






42. Velocity increases as passes through nozzles






43. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston






44. Admirally brass or Munte metal - 25-40mm thick






45. Compression ignititon engines






46. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work






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






48. Refers to the production of power during overload demands






49. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost






50. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell