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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. Atmospheric or hyperbolic






2. Monel metal - high tensile strength - nickel copper alloy






3. The space wherein the liquid refrigerant absorbs heat and boils






4. 1. air compressed to 1100-3000kPa 2. combustion at 2000C 3. mixed with air - cooled to 918C on exit 4. combustor gases go to turbine 5. gases from turbine leave at atmospheric pressure and 500-640C






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






6. 1. Carbon ring 2. labyrinth seal 3. water seal






7. Countries with small grids or specail grid requirements - has a high efficiency at base loads






8. Air flow is upward






9. 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






10. Center- to- center distance between baffles






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






12. Either fixed production or varying






13. Use teflon or carbon to lubricate system






14. At high temperatures a material stretches






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






16. 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






17. 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






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






19. Moving blades on a rotor






20. Seperately forged discs or wheels and shrunk onto shaft






21. 'booster' compressor






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






23. Too small to settle out - add floc






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






25. Straight condensing






26. A group of one or more bays - including one or more units arranged in a single or continuous structure






27. Have advantage of high efficiencies - 10% greater than centrifugal compressors






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






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






30. Polymers (polyelectrolytes)






31. 1. high manufacturing costs 2. slow speed changes 3. low efficiencies at low throttle






32. Entire collection of all component

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






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






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






36. Recuperative category - high pressure






37. Higher power and speeds






38. Refers only to specificly to the turbine section

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39. 1. Split 2. double






40. 1. spray 2. fog 3. special evaporator pads






41. Waste heat only






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






43. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records






44. Eliminates thrust - steam admitted midway along casing






45. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing






46. Made of polyethylene - skimming from the surface






47. Chrome- iron alloy






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






49. 1. brass 2. copper 3. cupronickel






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