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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. A group of one or more bays - including one or more units arranged in a single or continuous structure






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






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






4. Increased efficiency due to decreased frictional losses






5. 1. Split 2. double






6. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust






7. Cool compressed air before point of use






8. 1. evaporator coil






9. 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






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






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






12. zeolite molecular sieve desiccant






13. Contains dissolved oxygen






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






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






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






17. Driving rotating equipment






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






19. 0.577 times the inlet pressure






20. Used to satisfy process steam requirements






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

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22. Condensing turbines exhaust steam at...






23. 1. written 2. spoken 3. visual






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






25. Used for single acting compressors






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






27. Most widely used - least amount of steam






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






29. 43-49 degrees C






30. Small pressure drop






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






32. Requires annual review of SOPs






33. An 'overrunning' clutch






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






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






36. Cannot go below -18






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






38. No dissolved oxygen but does contain nitrates






39. Results in a gain in velocity - the moving blades change direction producing force






40. 1. thrust bearings 2. dummy pistions 3. thrust adjusting gear






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






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






43. Use teflon or carbon to lubricate system






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






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






46. To remove and properly dispose of pollutants






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






48. Air drawn from atmosphere - working fluid






49. 1. control range of 0 to 100% load 2. energy efficient






50. 1. planning 2. implementation 3. review