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






2. A verticle well is used to increase the NPSH - gives better performance and less cavitation






3. 1. Condensing 2. non - condensing (backpressure)






4. 1. written 2. spoken 3. visual






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






6. Too small to settle out - add floc






7. 1. use clean burning fuels 2. less fuel being used - saving energy reserves 3. electrical production onsite lowers construction demands for new sites and reduces transmission line power losses






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






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






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






11. Radiator type






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






13. Moisture removed by centrifugal force






14. 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






15. Use of a rotary lobe air blower






16. Atmospheric or hyperbolic






17. Calcium chloride and water - -51






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






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






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






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






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






23. Servomotors






24. The condenser






25. Help maintain definite thrust toward exhaust






26. 1. individual pump system 2. distributor system 3. common rail system






27. Working fluid is compress then preheated in regenerator






28. Pressure drops across the moving blades






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






30. Has steam directed through baffles making 4 passes






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






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






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






34. The change in sped that resutls from an increase in load






35. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration






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






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






38. zeolite molecular sieve desiccant






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






40. 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






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






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






43. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles






44. Sagging and hogging - 20-40rpm






45. Made of polyethylene - skimming from the surface






46. Either fixed production or varying






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






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






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






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