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






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






3. 3 seconds






4. Poisonous and infectious materials






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






6. Used to linearize the measurement signal






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






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






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






10. Self starting






11. 0.5 cubic meters (18 cubic feet)






12. Shunt parallel with the armature






13. Controller output is above minimum value when error is zero






14. Is the combined effect of inductive reactance and capacitive reactance






15. Organically bound component of the fuel






16. Motor control center






17. Is the instantaneous values through one cycle(squared) the average






18. More expensive - Involves the use of long large diameter pipelines - Hydrogen content in gas decreases the efficiency of combustion. Each kg of hydrogen produces 9 kg of water






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






20. Where shock loading may occur






21. Power factor






22. Alternators






23. Shunt - series and compound wound






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






25. A reference point of zero Voltage potential






26. Expensive - externally mounted - not accurate for densisty changes






27. Point level measurement used to open or close a circuit






28. 1. carbon 2. hydrogen 3. sulphur






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






30. Pancake or concentric






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






32. Oxidizing materials






33. Orginate from atmospheric air - temperatures above 1500






34. Free valence electrons are attracted by the positive terminal of the voltage supply and will flow out continuously from negative terminal into the circuit






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






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






37. Interest of workers - employers - suppliers - regulators






38. Used for combustion calculations






39. 6 times its normal full load current






40. Compressed gas






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






42. Combination of shunt and series






43. 'hops'






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






45. Use NPS 102mm pipe






46. Is the total opposition - Z






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






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






49. Useful amount of flux per pole






50. 5 min delay