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






2. The crankshaft and valve train






3. Use antifriction bearings






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






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






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






7. 1. compressor discharge 2. condenser 3. liquid receiver






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






9. Removal of exhaust gases by blow air through






10. 1. written 2. spoken 3. visual






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






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






13. Small pressure drop






14. Compression ignititon engines






15. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%






16. King valve






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






18. Overall master plan - comprehensive program






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






20. Refers only to specificly to the turbine section

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






22. Used for single acting compressors






23. Pressure does not drop across the moving blades






24. Made of polyethylene - skimming from the surface






25. A concentrated solution at its critical point






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






27. KW at 15C standard at sealevel with 60% RH






28. Moisture removed by centrifugal force






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






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






31. Change in direction causing a turbine to move






32. Contains 0.5kg of moisture for every 28 cubic meter of air






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






34. Cool compressed air before point of use






35. 1. convergent 2. convergent- divergent






36. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure






37. Cannot go below -18






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






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






40. 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






41. Direct contact type - uses converging nozzles and in moderate vacuum






42. The utilization of one form of input energy to generate two or more forms of output energy






43. 'huff and puff' methods

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44. Radiator type






45. 5mm in diameter






46. 1. lubricate sliding surfaces 2. cool bearings






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






48. Up to 60-90%






49. 1. evaporator coil






50. Discharge steam when excessive backpressure exists