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. Controlled pressure from intermediate stages of turbine






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






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






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






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






6. Chrome- iron alloy






7. Change in direction causing a turbine to move






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






9. More rounded than impulse blading






10. Refers only to specificly to the turbine section

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11. An 'overrunning' clutch






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






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






14. Use teflon or carbon to lubricate system






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






16. Refers to the production of power during overload demands






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






18. Calcium chloride and water - -51






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






20. Does not contain dissolved oxygen






21. 1. Flyweights 2. coutner spring 3. function based on centrifugal force






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






23. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control






24. Each stage seperated by partitions - nozzles set into diaphragms






25. Air flow is upward






26. Compression ignititon engines






27. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity






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






29. Higher power and speeds






30. Is the ratio of the discharge pressure to the intake pressure absolute






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






32. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work






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






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






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






36. Control a steady backpressure - sensing element in exhuast line






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






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

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39. Center- to- center distance between baffles






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






41. 75 -000 to 100 -00 hours of operation






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






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






44. To remove and properly dispose of pollutants






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






46. 'huff and puff' methods

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47. Change in momentum

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48. Air flow is horizontal






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






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