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. Fuel supplied firstg produces electrcial power with thermal energy as a by- product

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2. 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






3. 'huff and puff' methods

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4. Pressure drops across the moving blades






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






6. DLN - reduce NOx down to 9ppm but have an increased combustion area






7. 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






8. Discharge steam when excessive backpressure exists






9. 1. compressor section 2. combustor 3. turbine section






10. Nickel steel - strong fully balanced rotor - expensive






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

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12. 'booster' compressor






13. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips






14. Center- to- center distance between baffles






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






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






17. Atmospheric or hyperbolic






18. Have advantage of high efficiencies - 10% greater than centrifugal compressors






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






20. Help maintain definite thrust toward exhaust






21. Waste heat only






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






23. Eliminates thrust - steam admitted midway along casing






24. 1. electricial purity 2. silver nitrate - milky white






25. Requires annual review of SOPs






26. Does not contain dissolved oxygen






27. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases






28. No dissolved oxygen but does contain nitrates






29. Increased efficiency due to decreased frictional losses






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






31. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm






32. 43-49 degrees C






33. Change in momentum

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






35. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing






36. Same principle as a turbine but acting in reverse






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






38. Servomotors






39. Each shaft needs a thrust bearing






40. Higher power and speeds






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






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






43. 1. activated sludge and primary sludge combined 2. heated to 37C 3. sits for 25 days 4. anaerobic bacteria breaks down organic contents 5. produces useable gases for waste heat






44. Driving rotating equipment






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






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






47. Ground water monitoring device






48. Moving blades on a rotor






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






50. Refers only to specificly to the turbine section

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