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. Split 2. double






2. 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






3. Grit chambers and screens for waster water system






4. Each shaft needs a thrust bearing






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






6. 1. activated sludge and primary sludge combined 2. heated to 37C 3. sits for 25 days 4. anaerobic bacteria breaks down organic contents 5. produces useable gases for waste heat






7. Entire collection of all component

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8. Refers only to specificly to the turbine section

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9. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic






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






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






12. Moisture removed by centrifugal force






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






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






15. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity






16. Unit produces electricity on an ongoing basis






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






18. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices






19. Hydraulic cylinder or pisston on a governor






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






21. Cool compressed air before point of use






22. 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






23. Direct contact type - uses converging nozzles and in moderate vacuum






24. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs






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






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






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






28. Use teflon or carbon to lubricate system






29. Air drawn from atmosphere - working fluid






30. 1. activated sludge 2. rotating biological contactors 3. trickling filters






31. 1. compression ration across compressor 2. turbine inlet temperature






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






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






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






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






36. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled






37. drum rotors on reaction turbines eliminates...






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






39. Ground water monitoring device






40. 1. list of all equipment 2. PM checklist 3. fequency 4. repairs and costs 5. record keeping 6. cost management






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






42. 1. convergent 2. convergent- divergent






43. 1. Flyweights 2. coutner spring 3. function based on centrifugal force






44. Polymers (polyelectrolytes)






45. A concentrated solution at its critical point






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






47. Refers to the production of power during overload demands






48. 1. lubricate sliding surfaces 2. cool bearings






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






50. 1. written 2. spoken 3. visual