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. The space wherein the liquid refrigerant absorbs heat and boils






2. 1. Split 2. double






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






4. Driving rotating equipment






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






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






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






8. Help maintain definite thrust toward exhaust






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






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






11. Made of cast iron and support by stay bolts to protect against a vacuum






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






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






14. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades






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






16. Small pressure drop






17. Overall master plan - comprehensive program






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






19. The change in sped that resutls from an increase in load






20. Counter act force and load on thrust bearings






21. DLN - reduce NOx down to 9ppm but have an increased combustion area






22. Recuperative category - high pressure






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






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






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






26. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations






27. Most widely used - least amount of steam






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






29. Compression ignititon engines






30. 1. written 2. spoken 3. visual






31. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters






32. Use teflon or carbon to lubricate system






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






34. Working fluid is compress then preheated in regenerator






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






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






37. Sagging and hogging - 20-40rpm






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






39. Change in momentum

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






41. Velocity increases as passes through nozzles






42. 1. brass 2. copper 3. cupronickel






43. Ground water monitoring device






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






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

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






47. Moving blades on a rotor






48. Straight condensing






49. 1. compression ration across compressor 2. turbine inlet temperature






50. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact