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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. Higher heating values include the latent heat of the water vapor in the products of combustion






2. Smallest cross sectional area






3. To ensure a supply of dry steam throughout the steam system






4. Poisonous and infectious materials






5. Pipe thickness must be increased by 15% or 3.0mm






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






7. PLC control diagram






8. Motor control center






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






10. The effective value of current and voltage - apparent power






11. Used in feedforward control - signal is fed into the model to trim model parameters - components for imperfections in the feedforward control






12. Thermally sensitive resistor - negative tempertaure co- efficient - non linear with temperature






13. Imaginary power






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






15. Design number followed by the provinces - the registered - the design in chronological order proceeding the decimal






16. RTU (remote terminal unit) and MTU (master terminal unit) - modems or data communication equipement (DCE)






17. Self excited - armature fields conencted in series - initial emf depends on residual magnetism - field current is also the load current






18. Feeds current to or from the armature's conductors






19. Safety of the life and property






20. Use NPS 102mm pipe






21. Hard - dense - very brittle and shiny black with no layering - low % of volatile matter. Consists mostly of methane. Is expensive - high ignition temperature and burns slowly - and a lower heating value than high grade bituminous






22. Corrosive materials






23. Acts like on - off controller






24. One coulomb flowing past any section of a conductor per second






25. 85% or less of normal value power






26. A reference point of zero Voltage potential






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






28. Wander erratically






29. RMS; AC voltage that equals DC voltage that will do the same amount of work. For an AC sine wave it is 0.707 x peak voltage. Effective value






30. The direction of an induced emf is always such that any current it produces opposes - trhrough its magnetic effects the charge inducing the emf

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31. Always exist - as the gain increases the offset decreases






32. Useful amount of flux per pole






33. Canadian Standard Association (CSA) - American Society of Mechanical Engineers (ASME) - National Board of Boiler and Pressure Vessel Inspectors (NBBI)






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






35. Pulse generator operates at 3-40kHz






36. 1. product identifier 2. information for safe handling 3. hazardous symbol - first aid - safe handling 4. reference to MSDS






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






38. Used to linearize the measurement signal






39. Combination of shunt and series






40. Economical - differential pressure due to change in centrifugal force






41. The fule - the method of firing - the burner and furnace design and load on boiler






42. Just enough oxygen for complete combustion






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






44. Mircroprocessors - memory - inputs/outputs - terminals - power supply






45. Heavy load deman






46. Intensity of heat radiation increases proportionately to the 4th power of absolute temperature of a body






47. Work to elimate errors






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






49. Before electron flow theory - flow of postive charges from the postive terminal






50. Cells that create emf using light