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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. Controlled pressure from intermediate stages of turbine






2. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell






3. Use of a rotary lobe air blower






4. Ground water monitoring device






5. Velocity increases as passes through nozzles






6. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)






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






8. Each shaft needs a thrust bearing






9. 43-49 degrees C






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






11. Radiator type






12. One or more tube bundles - in one or more bays for an individual service or process






13. Center- to- center distance between baffles






14. 1. Carbon ring 2. labyrinth seal 3. water seal






15. Nickel steel - strong fully balanced rotor - expensive






16. Direct prosses applications - absorption refrigeration - heat recovery boiler






17. 1. evaporator coil






18. Refers to the production of power during overload demands






19. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing






20. 1. can - annular 2. annular 3. single- can






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






22. Cannot go below -18






23. Same principle as a turbine but acting in reverse






24. 1. lubricate sliding surfaces 2. cool bearings






25. Overall master plan - comprehensive program






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






27. 1. convergent 2. convergent- divergent






28. Monel metal - high tensile strength - nickel copper alloy






29. A thrust block that enables the axial position of the rotor to be controlled






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






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






32. Quantity ofr compressed air and delivered air by the compressor






33. Cast with special nickel based alloys - Inconel - Udimet - Waspalloy - Hastelloy






34. King valve






35. The crankshaft and valve train






36. 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






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






38. Change in momentum

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39. Moisture removed by centrifugal force






40. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing






41. Cool compressed air before point of use






42. 1. contact - 'jet' 2. surface






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






44. Air flow is upward






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






46. 1. electricial purity 2. silver nitrate - milky white






47. Forced or induced draft






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






49. Made of steel - used for double acting pistons - acts as a piston rod






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