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. Compression ignititon engines






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






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






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






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






6. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines






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






8. Use antifriction bearings






9. 'booster' compressor






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






11. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature






12. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%






13. Integral part of the governing system - in the front end and engages at 10-12% above normal operating speed






14. Ground water monitoring device






15. Use teflon or carbon to lubricate system






16. Change in momentum

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


17. Refers only to specificly to the turbine section

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


18. Same principle as a turbine but acting in reverse






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






20. Results in pressure drop and increased velocity






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






22. Up to 60-90%






23. Air drawn from atmosphere - working fluid






24. Large turbines couple together on a single shaft applied to one generator






25. No dissolved oxygen but does contain nitrates






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






27. 1. brass 2. copper 3. cupronickel






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






29. 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






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






31. Too small to settle out - add floc






32. Pressure does not drop across the moving blades






33. 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






34. Pressure drops across the moving blades






35. Grit chambers and screens for waster water system






36. 1. planning 2. implementation 3. review






37. zeolite molecular sieve desiccant






38. King valve






39. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting






40. More rounded than impulse blading






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






42. Each shaft needs a thrust bearing






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






44. 1. compressor section 2. combustor 3. turbine section






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






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






47. Waste heat only






48. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor






49. Cool compressed air before point of use






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