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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. Air flow is horizontal






2. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy

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






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






5. Atmospheric or hyperbolic






6. 1. evaporator coil






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






8. Results in pressure drop and increased velocity






9. 43-49 degrees C






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






11. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates






12. Attempting to pick up a load - turbines in parallel






13. drum rotors on reaction turbines eliminates...






14. Center- to- center distance between baffles






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






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






17. Most widely used - least amount of steam






18. Recuperative category - high pressure






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






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






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






22. Straight condensing






23. 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






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






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






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






27. Velocity increases as passes through nozzles






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






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






30. zeolite molecular sieve desiccant






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






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






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






34. Counter act force and load on thrust bearings






35. Type of hydrometer indicating % of salt in solution






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






37. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87






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






39. Calcium chloride and water - -51






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






41. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants






42. 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






43. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records






44. Used for single acting compressors






45. The condenser






46. 0.577 times the inlet pressure






47. 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






48. Large turbines with a generator on each shaft






49. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function






50. Waste heat only