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. A1 - A2 - A3 - B1 - B2 and B3 A = toxicity not identified under 400ppm B = toxicity identified under 400ppm 1 = not flammable 2 = low flammable limit 3 = highly flammable






2. Help maintain definite thrust toward exhaust






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






4. Counter act force and load on thrust bearings






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






6. drum rotors on reaction turbines eliminates...






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






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






9. An 'overrunning' clutch






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






11. Seperately forged discs or wheels and shrunk onto shaft






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






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






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






15. More rounded than impulse blading






16. Entire collection of all component

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17. Small clearances between discs on shaft to...






18. Direct prosses applications - absorption refrigeration - heat recovery boiler






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






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






21. 1. Split 2. double






22. 1. evaporator coil






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






24. Hydraulic cylinder or pisston on a governor






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






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






27. Calcium chloride and water - -51






28. 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






29. 1. written 2. spoken 3. visual






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






31. King valve






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






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






34. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87






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






36. Change in momentum

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






38. 43-49 degrees C






39. 1. large volumes of air 2. simple and rugged 3. low maintenance






40. 1. Responsive to speed changes 2. responsive to pressurre changes






41. 1. Aero- derivate 2. Heavy duty






42. Pressure drops across the moving blades






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






44. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell






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






46. 1. air compressed to 1100-3000kPa 2. combustion at 2000C 3. mixed with air - cooled to 918C on exit 4. combustor gases go to turbine 5. gases from turbine leave at atmospheric pressure and 500-640C






47. 1. to increase steam production 2. control superheater temperatures 3. meet process demands






48. 1. internal 2. external 3. equipment vendors 4. chemical suppliers 5. office equipement vendors






49. Has steam directed through baffles making 4 passes






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