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






2. 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






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






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






5. Meters liquid from liquid line into evaporator at a rate equal at which vaporization of liquid is occuring






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






7. Forced or induced draft






8. Reduces steam pressure and velocity in two or more steps






9. 1. better than gantt chart 2. establishes feasible sequence 3. timetable 4. spare time plotted 5. critical activities 6. use of arrow diagrams 7. event (aka nodes) - a situation that occurs after a completed activity 8. schedule manpower efficiently






10. Made of steel - used for double acting pistons - acts as a piston rod






11. King valve






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






13. Seperately forged discs or wheels and shrunk onto shaft






14. 1. individual pump system 2. distributor system 3. common rail system






15. Change in direction causing a turbine to move






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






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






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






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






20. Sagging and hogging - 20-40rpm






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






22. 1. lubricate sliding surfaces 2. cool bearings






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






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






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






26. Driving rotating equipment






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






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






29. Independant of the governor - inductive sensor (magnetic speed pickups)






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


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






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






33. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles






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






35. Radiator type






36. The crankshaft and valve train






37. 1. kettle 2. thermosyphon horizontal 3. thermosyphon vertical






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






39. A verticle well is used to increase the NPSH - gives better performance and less cavitation






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






41. To remove and properly dispose of pollutants






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






43. One or more tube bundles - in one or more bays for an individual service or process






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






45. Hydraulic cylinder or pisston on a governor






46. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter






47. Steam expands and pressure drops as it passes through moving blades - unbalance pressure






48. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing






49. Most widely used - least amount of steam






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