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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. Oscillate - on - off control behavior






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






3. Work to elimate errors






4. To provide electrical power for whatever need in a safe and dependable manner






5. Prevents/dampens external vibration






6. Current flow only when the current is changing in value






7. Outline the rights and responsibilites of workers and employers






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






9. 3 rotor windings spaced 120 degrees apart






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






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






12. CO2 - SO2 - H20 - N2 and ash






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






14. 3 seconds






15. Gas only applications - lobe impellars






16. Load current is also the excitation current - never operate without a load - has high starting torque






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






18. Casues the neutral plane within whcih brushes have been placed to shift - so that the brushes are now shorting the coils - which produce voltage (sparking) - use interpoles to neutralize condition






19. Establish rules of safety covering the design - fabrication - and inspection during construction of boilers and pressure vessels - and to interpret these rules when questions arise






20. Is a strategy whereby one process is controlled in a specific ration to another process variable






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






22. The nature of atoms and the manner in which they behave when subjected to variuos forces and conditions






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


24. 5 min delay






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






26. The chemical union of the combustible elements of a fuel and the oxygen in the air - at a rate that produces useful heat energy






27. 1. pneumatic 2. electronic 3. optical






28. The amount of power that can be dissipated by the resistor without affecting its characteristics - speicifc to 20 degrees






29. Power in watts






30. Shunt parallel withe the armature and series field






31. Correct inductive loads - unit is called a farad (F) and the symbol used is 'c'






32. Used in bellows






33. Can switch the direction of an alternator






34. Used in building over 3 stores - 14m






35. Second element of WHMIS






36. Direction and intensity of the current flow






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






38. Parallel branches - 2 series of resistors - the bridge indicates a balanced voltage condition






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






40. Has a high magnetic reluctance






41. Promote safety and uniformity in the design - construction - installation - operation - testing - and repair of boilers - pressure vessels - and related equipment






42. 1. Class A - ordinary combustibles 2. Class B - vapor- air mixtures 3. Class C - electrical 4. Class D - combustible metals






43. The offset of a proportional controller decreases to maintain SP






44. Contains 1 kg of oxygen






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






46. Speed conditions - strength of field - number of conductors






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


48. Self starting






49. Dark brown in color - laminar structure - often with remnants of woody fibers present. Tough but not hard - when exposed to air it loses moisture rapidly and crumbles






50. Imaginary power






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