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. At high temperatures a material stretches






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






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






4. 1. Split 2. double






5. Refers to the production of electricity form two sources utilizing one fuel source






6. Either fixed production or varying






7. 'booster' compressor






8. Centrifugal pumps






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






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






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






12. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve






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






14. 1. charge drawn into cylinder is air only 2. fuel injected at high pressures 3. ignition due to high compression temperatuers






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






16. Each shaft needs a thrust bearing






17. 1. plate 2. channel






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






19. Change in momentum


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






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






22. Help maintain definite thrust toward exhaust






23. Non - condensing turbine exhaust steam at...






24. Used to satisfy process steam requirements






25. The difference between the no- load and full- load speed - expressed as a %






26. Rows of stationart baldes with alternating rows of moving blades






27. Wrist pins that connect pistons to rod - retained bu circlips






28. The crankshaft and valve train






29. Change in direction causing a turbine to move






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






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






32. Meters liquid from liquid line into evaporator at a rate equal at which vaporization of liquid is occuring






33. 1. Aero- derivate 2. Heavy duty






34. Eliminates thrust - steam admitted midway along casing






35. 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






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






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






38. Moisture removed by centrifugal force






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






40. Contains 0.5kg of moisture for every 28 cubic meter of air






41. Entire collection of all component


42. Removal of exhaust gases by blow air through






43. Use teflon or carbon to lubricate system






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






45. 1. convergent 2. convergent- divergent






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






47. 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






48. 1. planning 2. implementation 3. review






49. The condenser






50. Calcium chloride and water - -51