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. Wrist pins that connect pistons to rod - retained bu circlips






2. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing






3. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding






4. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs






5. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations






6. Use antifriction bearings






7. The difference between the no- load and full- load speed - expressed as a %






8. 1. electricial purity 2. silver nitrate - milky white






9. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm






10. Cool compressed air before point of use






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






12. 1. Condensing 2. non - condensing (backpressure)






13. Small clearances between discs on shaft to...






14. 1. evaporator coil






15. Equal and opposite reation

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


16. Type of hydrometer indicating % of salt in solution






17. Condensing turbines exhaust steam at...






18. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface






19. 0.577 times the inlet pressure






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






21. Hydraulic cylinder or pisston on a governor






22. zeolite molecular sieve desiccant






23. Air flow is upward






24. A concentrated solution at its critical point






25. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines






26. Driving rotating equipment






27. Monel metal - high tensile strength - nickel copper alloy






28. Has steam directed through baffles making 4 passes






29. 1. high power to weight ration 2. use of different liquids and gaseous fuels 3. start rapidly 4. simple and compact design 5. reliable 6. remote operation






30. Forced or induced draft






31. Discharge steam when excessive backpressure exists






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






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






34. Waste heat only






35. '3 ports' 1. intake and exhaust 2. compression and ignititon






36. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference






37. Calcium chloride and water - -51






38. DLN - reduce NOx down to 9ppm but have an increased combustion area






39. Cause high discharge pressures - more power requirements - reduces capacity






40. 1. compressor discharge 2. condenser 3. liquid receiver






41. Requires annual review of SOPs






42. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust






43. Eliminates thrust - steam admitted midway along casing






44. 1. air compressed to 1100-3000kPa 2. combustion at 2000C 3. mixed with air - cooled to 918C on exit 4. combustor gases go to turbine 5. gases from turbine leave at atmospheric pressure and 500-640C






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






46. Servomotors






47. drum rotors on reaction turbines eliminates...






48. 1. planning 2. implementation 3. review






49. 1. convergent 2. convergent- divergent






50. Dry surface coolers - no contact convection hx - aka finned tube exchangers