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. Means to come together and form one mass - removes oil and water from air






2. Polymers (polyelectrolytes)






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






4. No dissolved oxygen but does contain nitrates






5. '3 ports' 1. intake and exhaust 2. compression and ignititon






6. Recuperative category - high pressure






7. 1. Split 2. double






8. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve






9. As prime movers in pulp and paper industry






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






11. zeolite molecular sieve desiccant






12. Increased efficiency due to decreased frictional losses






13. Use teflon or carbon to lubricate system






14. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)






15. Small pressure drop






16. Moving blades on a rotor






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






18. 1. evaporator coil






19. An 'overrunning' clutch






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






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






22. Higher power and speeds






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






24. Higher altitudes






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






26. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices






27. Quantity ofr compressed air and delivered air by the compressor






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






29. Attempting to pick up a load - turbines in parallel






30. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston






31. The difference between the no- load and full- load speed - expressed as a %






32. Unit produces electricity on an ongoing basis






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






34. 1. brass 2. copper 3. cupronickel






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






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






37. 1. verticle cyclinder 2. cabin heater 3. central tube wall






38. To remove and properly dispose of pollutants






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






40. 1. Aero- derivate 2. Heavy duty






41. Use antifriction bearings






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






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






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






45. Too small to settle out - add floc






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






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






48. 5mm in diameter






49. Ground water monitoring device






50. Calcium chloride and water - -51