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Test your basic knowledge |
Power Engineering 2
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Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. brass 2. copper 3. cupronickel
heat exchanger materials
types of reboilers
centrifugal air compressors advantages
difference between diesel and gas engines
2. 'huff and puff' methods
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3. Type of hydrometer indicating % of salt in solution
Pressure below atmospheric
salometer
non - condensables
types of refrigerant evaporators
4. 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
bank
thermocouple locations in fired heaters
gas turbine operating principles
mechanical drive turbine
5. Removal of exhaust gases by blow air through
special aspects of reaction turbine
scavenging
adv of impulse turbine
'gas turbine'
6. Change in direction causing a turbine to move
power oil
expansion valve
gudgeon pins
impulse force
7. Integral part of the governing system - in the front end and engages at 10-12% above normal operating speed
mechanical overspeed trip
regulation compressor systems
suction line unloading valve advantages
double- flow in reaction turbines
8. Recuperative category - high pressure
components of PM program
mechanical governors
dummy pistons
double pipe hx
9. 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
Ammonia R-717
R-134a
critical path method (CPM)
secondary cogeneration output
10. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices
reduce cavitation in extraction pumps
oil system components
liquid line aka
anoxic
11. 1. list of all equipment 2. PM checklist 3. fequency 4. repairs and costs 5. record keeping 6. cost management
refrigeration safety controls
components of PM program
condenser tube sheets made of...
condenser safety devices
12. 1. individual pump system 2. distributor system 3. common rail system
gas turbine efficiencies based on...
thermal load control
magneto ignition
solid injection designs
13. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
supercharge
sodium chloride
coalescing filters
tangs
14. 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
marco cogeneration advantages
R-22
single shaft combine cycle cogeneration
supercharge
15. Discharge steam when excessive backpressure exists
types of turbines
types of reboilers
anaerobic
sentinel vales
16. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based
aero- derivative turbines
single flow turbines
magneto ignition
R-134a
17. 1. control range of 0 to 100% load 2. energy efficient
sealing strips made of...
balancing pipe
fluid/air cooler
inlet modulating valve advantages
18. 43-49 degrees C
reaction turbines use ____ bearings
convergent- divergent
R-12
typical temperature for outlet on oil coolers
19. 1. kettle 2. thermosyphon horizontal 3. thermosyphon vertical
'bottoming cycle'
gas turbine components
Piezometer wells
types of reboilers
20. 1. widely used 2. single stage 3. impulse turbine
mechanical drive turbine
hairpin hx
brine
3 speed sensitive governors
21. Moisture removed by centrifugal force
methods to offset axial thrust
air take 'pulse cleaing systems'
combined cycle cogeneration
moisture separator
22. Refers to the production of electricity form two sources utilizing one fuel source
eutectic solution
starters transmit power to front end of gas turbnine by...
mechanical governors
combined cycle cogeneration
23. Monel metal - high tensile strength - nickel copper alloy
nozzels made of...
reaction turbine
sentinel vales
mirco cogeneration advantages
24. Calcium chloride and water - -51
brine
eutectic solution
nozzles types
newton's 2nd law
25. Dry surface coolers - no contact convection hx - aka finned tube exchangers
ejector condenser
sprial valve
aero- derivative turbines
aerial coolers
26. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method
gas turbine blades should be replaced every
headworks
clean turbine blading with
ISO 9000 certified
27. 1. can - annular 2. annular 3. single- can
clean turbine blading with
cogeneration
3 types of gas turbine combustors
types of gas turbines
28. drum rotors on reaction turbines eliminates...
aerial coolers
expansion valve
Axial thrust
natural draft cooling tower
29. 'booster' compressor
two stage refrigeration system
plant thermal effificienies
capacity
dual shaft combined cycle cogeneration
30. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
aero- derivative turbines
pressure sensitve governors
supercharge
purpose of compressor lubrication
31. Use teflon or carbon to lubricate system
types of fired heaters
when impulse turbine pressure drops
oil free compressors
shaft seals
32. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
cross compound turbine
Axial thrust
reaction turbines use ____ bearings
surging
33. Higher power and speeds
non - condensing turbines used
aerial coolers
double flow turbines
biological removal of solids
34. 0.577 times the inlet pressure
oil system components
staging
critical pressure
government regualtions for waste water
35. To remove and properly dispose of pollutants
waste water treatment purpose
bay
ammonia compression cycle low side
centrifugal air compressors advantages
36. 1. large volumes of air 2. simple and rugged 3. low maintenance
components of PM program
centrifugal air compressors advantages
anaerobic
condenser tube sheets made of...
37. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8
thermal load control
R-12
cogeneration
avoid surging
38. Air drawn from atmosphere - working fluid
air ejectors
turbocharge
open cycle
Pressure below atmospheric
39. 1. Split 2. double
turbine casings
air take 'pulse cleaing systems'
inlet cooling methods - evaporative
shaft seals
40. An 'overrunning' clutch
ejector condenser
purpose of compressor lubrication
starters transmit power to front end of gas turbnine by...
marco cogeneration advantages
41. Ground water monitoring device
Ammonia R-717
Piezometer wells
open cycle
types of turbines
42. A concentrated solution at its critical point
axial air compressors
moisture separator
eutectic solution
mechanical governors
43. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
cross compound turbine
cogeneration reduces energy costs by...
marco cogeneration advantages
types of turbines
44. Higher altitudes
higher compression ratios needed at...
close cycle disadvantages
reduce cavitation in extraction pumps
condenser tube attachment methods
45. Overall master plan - comprehensive program
jacking oil system
types of gas turbines
sealing strips made of...
gantt chart
46. Independant of the governor - inductive sensor (magnetic speed pickups)
electronic overspeed trip
First stage of gas turbine nozzles made of...
sprial valve
baffle pitch
47. Small clearances between discs on shaft to...
balancing pipe
secondary cogeneration output
compression ratio
Prevent thermal stresses
48. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
staging
aero- derivative turbines
centrifugal air compressor disadvantages
mirco cogeneration advantages
49. 1. sliding vane 2. rotary lobe 3. rotary screw ( convex male lobes - pulse free)
aftercoolers
jacking oil system
cogeneration application areas
rotary compressor types
50. Simple generator - light - no battery - hotter spark at higher speeds
non - condensing turbines used
gudgeon pins
communication structure
magneto ignition
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