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. Discharge steam when excessive backpressure exists






2. Admirally brass or Munte metal - 25-40mm thick






3. Center- to- center distance between baffles






4. 1. contact - 'jet' 2. surface






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






6. Unit produces electricity on an ongoing basis






7. Working fluid is compress then preheated in regenerator






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






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






10. Same principle as a turbine but acting in reverse






11. Equal and opposite reation

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12. Made of polyethylene - skimming from the surface






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






14. Higher altitudes






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






16. Help maintain definite thrust toward exhaust






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






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






19. Up to 60-90%






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






21. Grit chambers and screens for waster water system






22. 1. planning 2. implementation 3. review






23. One or more tube bundles - in one or more bays for an individual service or process






24. 1. list of all equipment 2. PM checklist 3. fequency 4. repairs and costs 5. record keeping 6. cost management






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






26. 5mm in diameter






27. Defined as one or more tube bundle - served by two or more fans complete with aux equipment






28. Requires annual review of SOPs






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






30. Moving blades on a rotor






31. Controlled pressure from intermediate stages of turbine






32. Centrifugal pumps






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






34. The crankshaft and valve train






35. Each shaft needs a thrust bearing






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






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






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






39. Cannot go below -18






40. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function






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






42. Pressure drops across the moving blades






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






44. Has steam directed through baffles making 4 passes






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






46. Chrome- iron alloy






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






48. 1. spray 2. fog 3. special evaporator pads






49. Straight condensing






50. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles