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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. Results in pressure drop and increased velocity






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






3. Nickel steel - strong fully balanced rotor - expensive






4. Air flow is upward






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






6. 1. Split 2. double






7. Eliminates thrust - steam admitted midway along casing






8. Change in momentum


9. Higher power and speeds






10. Means to come together and form one mass - removes oil and water from air






11. A concentrated solution at its critical point






12. Overall master plan - comprehensive program






13. Air flow is horizontal






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






15. An 'overrunning' clutch






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






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






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






19. 1. convergent 2. convergent- divergent






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






21. A thrust block that enables the axial position of the rotor to be controlled






22. drum rotors on reaction turbines eliminates...






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






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






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






26. Help maintain definite thrust toward exhaust






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






28. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding






29. As prime movers in pulp and paper industry






30. Chrome- iron alloy






31. 1. widely used 2. single stage 3. impulse turbine






32. Needs to a high vacuum present in system before charging






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






34. Cannot go below -18






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






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






37. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration






38. 5mm in diameter






39. 1. use clean burning fuels 2. less fuel being used - saving energy reserves 3. electrical production onsite lowers construction demands for new sites and reduces transmission line power losses






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






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






42. 1. lubricate sliding surfaces 2. cool bearings






43. Quantity ofr compressed air and delivered air by the compressor






44. Unit produces electricity on an ongoing basis






45. Radiator type






46. Use teflon or carbon to lubricate system






47. At high temperatures a material stretches






48. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell






49. The crankshaft and valve train






50. Removal of exhaust gases by blow air through






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