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. 1. temperature 2. time for reaction 3. mixing 4. amounts of nitrigon and oxygen available






2. 125V or less to ground - 30A max






3. P = 1(squared)R






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






5. There is no relative movement between the rotor bars and teh flux of the rotating field - countacts speed changes






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






7. Shunt parallel with the armature






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






9. One controlled variable and two manipulated variable as output - 'Duplex Controlres






10. Voltage decreases with an increase of load current






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






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






13. Conductor being moved - 'cut' magnetic fields of flux relative to the conductor movement - using fleming's right hand rule






14. Gas only applications - lobe impellars






15. Rectifier - battery bank - inverterm static switch - 1/4 cycle response time - generator supplies power to UPS - bumpless transfer - 60 second delay on power restore






16. Condensate capacity (under start up conditions) - Condensate temperature the trap operates under - The pressure differential across the trap under normal operating conditions






17. A reference point of zero Voltage potential






18. Arc range of 270 degrees






19. Shunt parallel withe the armature and series field






20. Salient and cylindrical






21. Wander erratically






22. Self starting






23. 80m - due to lag - pressure drop






24. Produces heavy residuals that may be suitable as fuel known as coke






25. Used in bellows






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






27. Purpose to minimize the effects of an emergency - legal and ethical responsibilites






28. Operates on the principle that the resistance of metal increases in direct proportional to increases in temperature - positve co- efficient - wheatstone bridge






29. Operates to prevent errors






30. Flammables and combustibles






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






32. Ranges from 42566 KJ/kg to 45350 KJ/kg






33. 85% or less of normal value power






34. Special squirrel cage winding in a synchronous machine - damper winding fitted into slots in the rotor pole faces






35. Supply and demand control






36. Use NPS 102mm pipe






37. Second element of WHMIS






38. Lowers wasted heat - lowers power requriements for forced draft and induced draft fans






39. Current through all resistors






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






41. Power in watts






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






43. Depends on both the amount and time duration of the deviation - it operates until it produces exact correction






44. Gamma radiation






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






46. Help reverse the current int eh coil passing under the brushes - commutations






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






48. Smallest cross sectional area






49. Acts like on - off controller






50. Is the current in any line voltage - phase volts