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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. widely used 2. single stage 3. impulse turbine






2. Centrifugal pumps






3. The crankshaft and valve train






4. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)






5. Forced or induced draft






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






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






8. Overall master plan - comprehensive program






9. Very high speed with extremely high centrigufal force and high frictional losses






10. Sagging and hogging - 20-40rpm






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






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






13. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters






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






15. Air drawn from atmosphere - working fluid






16. 1. collection system 2. seperation pond 3. flare pit 4. stabilization lagoon 5. wastewater heater 6. 1st stage aeration tank - activated sludge 7. 2nd stage aeration tank 8. clarifiers 9. polishing pond






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






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






19. Air flow is upward






20. 1. increases net power 2. clean working fluid 3. cheap fuel can be used






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






22. Throttle body






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






24. Condensing turbines exhaust steam at...






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






26. Removal of exhaust gases by blow air through






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






28. Requires annual review of SOPs






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






30. To remove and properly dispose of pollutants






31. The condenser






32. Recuperative category - high pressure






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






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






35. Refers to the production of electricity form two sources utilizing one fuel source






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






37. 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






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






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






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






41. 1. written 2. spoken 3. visual






42. 43-49 degrees C






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






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






45. zeolite molecular sieve desiccant






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






47. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based






48. Cool compressed air before point of use






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






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