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






2. 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






3. Used to satisfy process steam requirements






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






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






6. Higher power and speeds






7. Sagging and hogging - 20-40rpm






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






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






10. Entire collection of all component

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11. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines






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






13. A concentrated solution at its critical point






14. Use of a rotary lobe air blower






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

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16. A thrust block that enables the axial position of the rotor to be controlled






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






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






19. Servomotors






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






21. 1. planning 2. implementation 3. review






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






23. Has steam directed through baffles making 4 passes






24. 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






25. Countries with small grids or specail grid requirements - has a high efficiency at base loads






26. No dissolved oxygen but does contain nitrates






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






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






29. 1. compression ration across compressor 2. turbine inlet temperature






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






31. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust






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






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






34. Steam expands and pressure drops as it passes through moving blades - unbalance pressure






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






36. 1. brass 2. copper 3. cupronickel






37. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor






38. Cannot go below -18






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






40. 1. evaporator coil






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






42. Refers only to specificly to the turbine section

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43. zeolite molecular sieve desiccant






44. Use antifriction bearings






45. More rounded than impulse blading






46. Equal and opposite reation

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47. Centrifugal pumps






48. Waste heat only






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






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