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. Use teflon or carbon to lubricate system






2. Overall master plan - comprehensive program






3. Dry surface coolers - no contact convection hx - aka finned tube exchangers






4. Type of hydrometer indicating % of salt in solution






5. Servomotors






6. Velocity increases as passes through nozzles






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






8. Refers to the production of power during overload demands






9. 1. evaporator coil






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






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






12. 1. brass 2. copper 3. cupronickel






13. Nickel steel - strong fully balanced rotor - expensive






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






15. zeolite molecular sieve desiccant






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






17. Made of polyethylene - skimming from the surface






18. Atmospheric or hyperbolic






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






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






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






22. As prime movers in pulp and paper industry






23. 43-49 degrees C






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






25. Up to 60-90%






26. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled






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






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






29. Contains dissolved oxygen






30. King valve






31. 1. convergent 2. convergent- divergent






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






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






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






35. 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






36. 1. CCME 2. CEQG 3. CWQG 4. US EPA






37. Polymers (polyelectrolytes)






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






39. Use of a rotary lobe air blower






40. Forced or induced draft






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

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






43. Higher altitudes






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






45. Change in momentum

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46. Removal of exhaust gases by blow air through






47. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87






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






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






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