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






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






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






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






5. Velocity increases as passes through nozzles






6. Overall master plan - comprehensive program






7. Made of polyethylene - skimming from the surface






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






9. Higher altitudes






10. 1. Carbon ring 2. labyrinth seal 3. water seal






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






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






13. A group of one or more bays - including one or more units arranged in a single or continuous structure






14. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter






15. Use teflon or carbon to lubricate system






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






17. Is the ratio of the discharge pressure to the intake pressure absolute






18. 1. plate 2. channel






19. Large turbines with a generator on each shaft






20. 'huff and puff' methods

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21. Controlled pressure from intermediate stages of turbine






22. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function






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






24. 1. Responsive to speed changes 2. responsive to pressurre changes






25. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records






26. As prime movers in pulp and paper industry






27. Results in pressure drop and increased velocity






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






29. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting






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






31. Removal of exhaust gases by blow air through






32. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases






33. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices






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






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






36. Chrome- iron alloy






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






38. At high temperatures a material stretches






39. Moisture removed by centrifugal force






40. Used to satisfy process steam requirements






41. Nickel steel - strong fully balanced rotor - expensive






42. Eliminates thrust - steam admitted midway along casing






43. Type of hydrometer indicating % of salt in solution






44. Rows of stationart baldes with alternating rows of moving blades






45. Up to 60-90%






46. 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






47. The crankshaft and valve train






48. Change in direction causing a turbine to move






49. Refers to the production of power during overload demands






50. Use of a rotary lobe air blower