Test your basic knowledge |

Power Engineering 3

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. Is the amount of air in excess of theoretical air






2. Defined as that quantity of a substance that has a mass in kilograms equal to its molecular mass






3. Equal to the charge on 6.242 x 10 to 18th power of electrons - quantity of electricity






4. 1. dry chemical 2. gaseous 3. dry poweders 4. water 5. foam






5. 1. natural gas 5-10% 2. oil 5-15% 3. coal (pulverized) 15-30% 4. coal (stoker fired) 25-50%






6. 5 min delay






7. Ring type joint gaskets






8. Can switch the direction of an alternator






9. Only need 2 brushes






10. The output






11. 450kPa and 32 l/s






12. Used in building over 3 stores - 14m






13. In AC it is equal to the effective current x voltage - only when in phase






14. Low accuracy at low velocities - can plug with certain fluids - sensitive to local disturbances






15. Occurs when some of the elements pass to the stack






16. Just enough oxygen for complete combustion






17. Is the free electrons that are attracted by the positive terminal of thevoltage supply and will flow out continuously from the negative terminal






18. The flow of power pulsates






19. Fall under part IV of the controlled product regulations






20. Creates heat






21. Calorifc value formula






22. The ratio of change of output to change of input






23. 1. wet pipe 2. dry pipe 3. preaction - double interlocked 4. combination of dry and preaction 5. deluge






24. 6 times its normal full load current






25. Thermal coutout and a fuse link - cutout at 500% of normal current - greatest protection for motor currents






26. Combination of shunt and series






27. Unit of a fuel that is burned completely - for gas use kJ/cubic meter at standard 16 degrees at 101.3kPa






28. Exactly the theoretically amount of air necessary was supplied and the combustibles were all completely burned






29. Renewable resource and usually waste products of other process and uses






30. Is the total opposition in a curcuit to the flow of the current






31. Outline the rights and responsibilites of workers and employers






32. Impact force - +- 0.5% accuracy - good in corrosive environments - up to 10000kPa and 400 degrees






33. Dielectric constant (gas has a constant of 1) - provides continuous level measurement - used stored potential - no moving parts - can have erros due to change in constant - composition of material and temperature






34. Gas only applications - lobe impellars






35. Technical document that provides details and information - health effects - hazard evaluation - measure to protect workers at risk of overexposure - emergency procedures






36. All of the combustible in the fuel are completely burned and excess air






37. 1. anthracite 2. bituminous 3. sub- bituminous 4. lignite






38. Current is changing value. AC continuous changes generates alternating emf unit H - herny - symbol is 'L'






39. Refer to pg 27.2.1 of ASME academic extract - do not interpolate between values - select next higher rated value






40. Used up to 600V circuits - fuses are 250V and 600V made of zinc or alloy in a fiber tube. Amp sizes are 30 -60 -100 -200 -400 and 600A






41. 1. process 2. measurement 3. automatic controller 4. final control element






42. Adjustable speed






43. Current is the flow of positive charges from positive terminal of a voltage source - through the circuit and back to the negative terminal






44. High heat transfer coefficient - low density (1/4 of air) and can increase output up to 20-30% of transformer






45. Must be registered with the Provincial Boilers and Safety Division in local area






46. I - NPS 63mm II - NPS 38mm III - NPS of bother 63mm and 38mm






47. 1. I/O cards 2. network 3. FCEs 4. controllers 5. operator console (OP/CON)






48. 3 seconds






49. % of the process variable






50. Second element of WHMIS