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. 450kPa and 32 l/s






2. Flammables and combustibles






3. 0.5 cubic meters (18 cubic feet)






4. Equal to the charge on 6.242 x 10 to 18th power of electrons - quantity of electricity






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






6. Current after voltage - inductive load






7. 125V or less to ground - 30A max






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






9. Cells that create emf using light






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






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






12. Where shock loading may occur






13. Sum of current flowing away = sum flowing towards - and any closed path in an electrical circuit the sum of the voltages is zero as current passes through the resistors

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


14. 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






15. Is the amount of air in excess of theoretical air






16. 1.product information 2. hazardous ingredients 3. physical data 4. fire and explosion data 5. reactivity data 6. toxicological data 7. preventive measures 8. first aid 9. preperation information






17. Power factor






18. Used for combustion calculations






19. Dielectric constant (gas has a constant of 1) - provides continuous level measurement - used stored potential - no moving parts - can have erros due to change in constant - composition of material and temperature






20. Controls current to fields






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






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






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






24. Operates to prevent errors






25. 80m - due to lag - pressure drop






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






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






28. Produces sticky - cohesive mass when heated - carbon content is lower than anthracite - but volatile matter content is higher.






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






30. 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






31. Alternators






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






33. 1. identify probable emergencies 2. notification process (who and when) 3. determine immediate personal actions to be taken 4. minimize adverse effects on personnel - property and environment






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






35. Acts like on - off controller






36. Use of a fluidized bed of limestone reducing nitrous oxides and sulfur dioxide






37. Opposition to liquid head pressure






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






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






40. Terminal voltage decreases with increase of lead - field weakened by reduction of emf and it depends on the residual magnetism in the field circuit






41. Range of 250mm water to 350kPa






42. 'hops'






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


44. Ring type joint gaskets






45. Lower flash point the gas






46. 6 times its normal full load current






47. Thermal coutout and a fuse link - cutout at 500% of normal current - greatest protection for motor currents






48. Self starting






49. 1. carbon 2. hydrogen 3. sulphur






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