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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. compression ration across compressor 2. turbine inlet temperature






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






3. 1. increases net power 2. clean working fluid 3. cheap fuel can be used






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






5. Servomotors






6. Control a steady backpressure - sensing element in exhuast line






7. Cannot go below -18






8. Most widely used - least amount of steam






9. Recuperative category - high pressure






10. A concentrated solution at its critical point






11. Change in momentum

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12. Up to 60-90%






13. Type of hydrometer indicating % of salt in solution






14. 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






15. Results in pressure drop and increased velocity






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






17. Hydraulic cylinder or pisston on a governor






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






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






20. Help maintain definite thrust toward exhaust






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






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






23. Independant of the governor - inductive sensor (magnetic speed pickups)






24. To remove and properly dispose of pollutants






25. Higher altitudes






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






27. 1. convergent 2. convergent- divergent






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






29. Grit chambers and screens for waster water system






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






31. The crankshaft and valve train






32. 1. sliding vane 2. rotary lobe 3. rotary screw ( convex male lobes - pulse free)






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






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






37. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases






38. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding






39. Centrifugal pumps






40. Nickel steel - strong fully balanced rotor - expensive






41. zeolite molecular sieve desiccant






42. 1. Aero- derivate 2. Heavy duty






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






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






45. 75 -000 to 100 -00 hours of operation






46. Contains dissolved oxygen






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






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






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






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