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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. drum rotors on reaction turbines eliminates...






2. Large turbines couple together on a single shaft applied to one generator






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






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






5. 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






6. Recuperative category - high pressure






7. 0.577 times the inlet pressure






8. 1. Flyweights 2. coutner spring 3. function based on centrifugal force






9. Compression ignititon engines






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






11. Independant of the governor - inductive sensor (magnetic speed pickups)






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






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






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






15. 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






16. Centrifugal pumps






17. Calcium chloride and water - -51






18. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8






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






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






21. Cool compressed air before point of use






22. Chrome- iron alloy






23. Driving rotating equipment






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






25. Eliminates thrust - steam admitted midway along casing






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






27. Overall master plan - comprehensive program






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






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






30. The condenser






31. 1. collection system 2. seperation pond 3. flare pit 4. stabilization lagoon 5. wastewater heater 6. 1st stage aeration tank - activated sludge 7. 2nd stage aeration tank 8. clarifiers 9. polishing pond






32. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control






33. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature






34. 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






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






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






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






38. Moisture removed by centrifugal force






39. Velocity increases as passes through nozzles






40. Center- to- center distance between baffles






41. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters






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






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






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






45. 1. compression ration across compressor 2. turbine inlet temperature






46. Equal and opposite reation

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47. 1. Split 2. double






48. 1. activated sludge and primary sludge combined 2. heated to 37C 3. sits for 25 days 4. anaerobic bacteria breaks down organic contents 5. produces useable gases for waste heat






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






50. 75 -000 to 100 -00 hours of operation