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






2. Too small to settle out - add floc






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






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






5. Help maintain definite thrust toward exhaust






6. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced






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






8. Nickel steel - strong fully balanced rotor - expensive






9. Controlled pressure from intermediate stages of turbine






10. An 'overrunning' clutch






11. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer






12. 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






13. King valve






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






15. Pressure does not drop across the moving blades






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






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






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






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






20. A concentrated solution at its critical point






21. Non - condensing turbine exhaust steam at...






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






23. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)






24. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method






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






26. Does not contain dissolved oxygen






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






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






29. Each shaft needs a thrust bearing






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






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






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






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






34. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control






35. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8






36. 1. Aero- derivate 2. Heavy duty






37. Admirally brass or Munte metal - 25-40mm thick






38. Hydraulic cylinder or pisston on a governor






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






40. Most widely used - least amount of steam






41. Change in direction causing a turbine to move






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






43. On the exhaust side - drives the blower - being connected to the same shaft - increases power by 50-70% as more air is forced into the engine






44. Wrist pins that connect pistons to rod - retained bu circlips






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






46. Condensing turbines exhaust steam at...






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






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






49. Increase pressure affecting performance of condenser but do not incresase temperature






50. 1. convergent 2. convergent- divergent