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






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






3. 1. isolation from upsets 2. improves loop dynamics 3. removes valve charcteristics from the influences 4. second loop provides exact control






4. Oscillate - on - off control behavior






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






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






7. Salient and cylindrical






8. Operate at 3-5% above full load speed






9. Fall under part IV of the controlled product regulations






10. Aka rotameter - low cost - simple - low pressure drop - accurate






11. Material - size and temperature






12. Discrete input - on - off control






13. Any 2 conductors seperated by an insulating material - unit if farad (F) - symbol used 'C'






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






15. Shunt - series and compound wound






16. Calorifc value formula






17. Just enough oxygen for complete combustion






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






19. Current before voltage - capacitance load






20. Current after voltage - inductive load






21. Gamma radiation






22. Break contact with the line side first - line side first when installing






23. Motor control center






24. High insulation valve - long life - vermin proof - non - corrosive - ability to retain its shape and insulation value when wet






25. Power factor






26. Takes into consideration the speed at which the variable is deviating from the SP - only occurs when there is a change in error rate






27. 180 degrees - one pole = one pitch






28. Is the total opposition - Z






29. Control of supply side disturbances by feedback - single loop






30. Ground faults






31. Controls current to fields






32. Voltage and current reach their max values at the same time

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33. Adjustable speed






34. Large disturnbance and frequency could cause loop not to work properly - processes with large lag will not control






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






36. Only need 2 brushes






37. Prevents/dampens external vibration






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






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






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






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






42. Storage facility not required - Clean burning - no ash - Stack emission are relatively clean - Easily mixed with air - Does not require any extensive handling equipment - Easy to control






43. Opposes driving torque applied to a generator






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






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






46. No communicators - voltage can be transformed up or down and has slip rings






47. Can act as an induction motor - 3 directional inverse time overcurrent relays






48. Gas only applications - lobe impellars






49. Have 2 conductors - example is telephone and radio currents






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