Test your basic knowledge |

Power Engineering 2

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. Change in direction causing a turbine to move






2. A concentrated solution at its critical point






3. Made of cast iron and support by stay bolts to protect against a vacuum






4. Direct contact type - uses converging nozzles and in moderate vacuum






5. 1. brass 2. copper 3. cupronickel






6. Help maintain definite thrust toward exhaust






7. Polymers (polyelectrolytes)






8. 1. simple design 2. less piping 3. no freezing hazard






9. The utilization of one form of input energy to generate two or more forms of output energy






10. Made of steel - used for double acting pistons - acts as a piston rod






11. Very high speed with extremely high centrigufal force and high frictional losses






12. 1. can - annular 2. annular 3. single- can






13. Recuperative category - high pressure






14. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates






15. Refers to the production of electricity form two sources utilizing one fuel source






16. A verticle well is used to increase the NPSH - gives better performance and less cavitation






17. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles






18. Results in a gain in velocity - the moving blades change direction producing force






19. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based






20. Condensing turbines exhaust steam at...






21. Quantity ofr compressed air and delivered air by the compressor






22. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy

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


23. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston






24. 1. CCME 2. CEQG 3. CWQG 4. US EPA






25. 1. inlet to the convection section 2. betwen convection and radiant section 3. at radiant section outlet






26. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable






27. 1. high manufacturing costs 2. slow speed changes 3. low efficiencies at low throttle






28. Change in momentum

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


29. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips






30. Same principle as a turbine but acting in reverse






31. 'huff and puff' methods

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


32. Refers to the production of power during overload demands






33. Controlled pressure from intermediate stages of turbine






34. 1. to increase steam production 2. control superheater temperatures 3. meet process demands






35. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell






36. Each shaft needs a thrust bearing






37. Seperately forged discs or wheels and shrunk onto shaft






38. 1. widely used 2. single stage 3. impulse turbine






39. Counter act force and load on thrust bearings






40. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)






41. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87






42. Control a steady backpressure - sensing element in exhuast line






43. The change in sped that resutls from an increase in load






44. 1. plate 2. channel






45. Entire collection of all component

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


46. No dissolved oxygen but does contain nitrates






47. Chrome- iron alloy






48. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost






49. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure






50. On the exhaust side - drives the blower - being connected to the same shaft - increases power by 50-70% as more air is forced into the engine