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






2. 1. control range of 0 to 100% load 2. energy efficient






3. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads






4. 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






5. Either fixed production or varying






6. 1. written 2. spoken 3. visual






7. Air flow is upward






8. 1. evaporator coil






9. King valve






10. 1. Aero- derivate 2. Heavy duty






11. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced






12. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades






13. A thrust block that enables the axial position of the rotor to be controlled






14. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily






15. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants






16. The volum swept out by the piston - same through all stages






17. 1. use clean burning fuels 2. less fuel being used - saving energy reserves 3. electrical production onsite lowers construction demands for new sites and reduces transmission line power losses






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






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






20. drum rotors on reaction turbines eliminates...






21. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve






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






23. Grit chambers and screens for waster water system






24. zeolite molecular sieve desiccant






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






26. Discharge steam when excessive backpressure exists






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






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






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






30. Overall master plan - comprehensive program






31. Higher altitudes






32. 1. better than gantt chart 2. establishes feasible sequence 3. timetable 4. spare time plotted 5. critical activities 6. use of arrow diagrams 7. event (aka nodes) - a situation that occurs after a completed activity 8. schedule manpower efficiently






33. Cool compressed air before point of use






34. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing






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






36. 1. activated sludge 2. rotating biological contactors 3. trickling filters






37. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)






38. Velocity increases as passes through nozzles






39. Simple generator - light - no battery - hotter spark at higher speeds






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






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






42. Compression ignititon engines






43. Hydraulic cylinder or pisston on a governor






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






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






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






47. Use of a rotary lobe air blower






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






49. Air drawn from atmosphere - working fluid






50. Eliminates thrust - steam admitted midway along casing