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






2. Each shaft needs a thrust bearing






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






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






5. Type of hydrometer indicating % of salt in solution






6. Atmospheric or hyperbolic






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






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






9. Chrome- iron alloy






10. Calcium chloride and water - -51






11. Overall master plan - comprehensive program






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






13. Up to 60-90%






14. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature






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






16. 1. compressor section 2. combustor 3. turbine section






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






18. 1. sliding vane 2. rotary lobe 3. rotary screw ( convex male lobes - pulse free)






19. Forced or induced draft






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






21. Nickel steel - strong fully balanced rotor - expensive






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






23. 75 -000 to 100 -00 hours of operation






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






25. Waste heat only






26. Refers to the production of electricity form two sources utilizing one fuel source






27. 1. charge drawn into cylinder is air only 2. fuel injected at high pressures 3. ignition due to high compression temperatuers






28. 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






29. Radiator type






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






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






32. 'huff and puff' methods

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33. Air flow is upward






34. Most widely used - least amount of steam






35. Driving rotating equipment






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






37. Removal of exhaust gases by blow air through






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






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






40. Grit chambers and screens for waster water system






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






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






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






44. The volum swept out by the piston - same through all stages






45. 1. brass 2. copper 3. cupronickel






46. Unit produces electricity on an ongoing basis






47. Eliminates thrust - steam admitted midway along casing






48. 1. Condensing 2. non - condensing (backpressure)






49. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference






50. Pressure does not drop across the moving blades