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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. 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
centrifugal air compressors advantages
oil system components
intercoolers
marco cogeneration advantages
2. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
crosshead
air take 'pulse cleaing systems'
types of reciprocation compressors
single shaft combine cycle cogeneration
3. Recuperative category - high pressure
refrigeration safety controls
3 types of gas turbine combustors
turbine casings
double pipe hx
4. Centrifugal pumps
pressure drop across first row of reation turbine
extraction pumps usually are _____ type
ejector condenser
power oil
5. 1. individual pump system 2. distributor system 3. common rail system
2 major factos affecting gas turbine efficiency and power
difference between diesel and gas engines
hunting
solid injection designs
6. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
mechanical governors
Axial thrust
natural draft cooling tower
reaction turbines use ____ bearings
7. 1. Condensing 2. non - condensing (backpressure)
anaerobic
reduce cavitation in extraction pumps
types of turbines
surging
8. 1. kettle 2. thermosyphon horizontal 3. thermosyphon vertical
pressure compounding
types of reboilers
non - condensables
aerobic
9. The condenser
critical path method (CPM)
types of fired heaters
water boxes
largest hx in a plant is...
10. 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
waste water treatment plant components
R-22
single flow turbines
clean turbine blading with
11. Steam expands and pressure drops as it passes through moving blades - unbalance pressure
impulse buckets
double flow turbines
peak power
reaction turbine
12. Very high speed with extremely high centrigufal force and high frictional losses
sentinel vales
peak power
trunk type piston
impulse turbine disadvantage
13. Non - condensing turbine exhaust steam at...
project management
Above or at atmospheric pressure
saturated air
anaerobic digesters
14. Removal of exhaust gases by blow air through
adv of impulse turbine
'gas turbine'
scavenging
legal requirements of record keeping
15. Contains 0.5kg of moisture for every 28 cubic meter of air
methods to offset axial thrust
air cooling advantages over water cooling
centrifugal air compressors advantages
saturated air
16. Each shaft needs a thrust bearing
lube oil system basic functions
turbocharge
a tandem turbine coupled by flexible couplings
gas turbine advantages
17. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method
clean turbine blading with
coalescing filters
speed droop
thrust adjsusting gear
18. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
mirco cogeneration advantages
speed droop
close cycle
supercharge
19. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
gas turbine efficiencies based on...
mechanical overspeed trip
reaction turbines use ____ bearings
Ammonia R-717
20. Contains dissolved oxygen
aerobic
what large rotors are made of
thrust adjsusting gear
plant thermal effificienies
21. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm
selective catalytic reduction (SCR)
Piezometer wells
double pipe hx
barring gears prevent
22. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
condenser types
compressor valve types
to reduce steam and blade velocities
gas turbine advantages
23. 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
anaerobic digesters
bakpressure turbines
moisture separator
nozzels made of...
24. Large turbines couple together on a single shaft applied to one generator
surging
close cycle disadvantages
tandem compound turbines
balancing pipe
25. 1. to increase steam production 2. control superheater temperatures 3. meet process demands
duct burners in HRSG
newton's 2nd law
air ejectors
steam expanding through stationary nozzles
26. Refers to the production of electricity form two sources utilizing one fuel source
axial air compressors
water boxes
combined cycle cogeneration
servo motor
27. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference
hx principles
double pipe hx
axial compressors
reduce cavitation in extraction pumps
28. Wrist pins that connect pistons to rod - retained bu circlips
angstrom particles
government regualtions for waste water
combined cycle cogeneration
gudgeon pins
29. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
feature of impulse turbine
dynamic compressor control
components of PM program
Above or at atmospheric pressure
30. Control a steady backpressure - sensing element in exhuast line
pressure sensitve governors
biological removal of solids
air take 'pulse cleaing systems'
capacity
31. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
newton's 2nd law
3 speed sensitive governors
'gas turbine'
brine
32. Moving blades on a rotor
'bottoming cycle'
impulse buckets
what large rotors are made of
non - condensables
33. Attempting to pick up a load - turbines in parallel
types of turbines
4 stroke internal combustion
impulse buckets
hunting
34. Increase pressure affecting performance of condenser but do not incresase temperature
speed droop
reaction turbine components
sprial valve
air leaks in condensers
35. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell
jet condensers
environmental management program
newton's 2nd law
'topping cycle'
36. 1. control range of 0 to 100% load 2. energy efficient
a tandem turbine coupled by flexible couplings
pressure drop across first row of reation turbine
inlet modulating valve advantages
condenser types
37. Waste heat only
largest hx in a plant is...
refrigerant groups
unfired
gas turbine operating principles
38. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)
condenser safety devices
clean turbine blading with
BOD (biological oxygen demand)
special aspects of reaction turbine
39. Is the ratio of the discharge pressure to the intake pressure absolute
compression ratio
dry low NOx combustion systems
condenser types
anaerobic digesters
40. Entire collection of all component
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41. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
mechanical overspeed trip
inlet air unloader advantages
velocity compounding
hx principles
42. Cannot go below -18
critical path method (CPM)
turbocharge
refrigerant groups
sodium chloride
43. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
waste water treatment plant components
R-22
gas turbine disadvantages
tangs
44. drum rotors on reaction turbines eliminates...
single point fuel injection
Axial thrust
types of turbines
scavenging
45. No dissolved oxygen but does contain nitrates
coagulant aids
dual shaft combined cycle cogeneration
single shaft combine cycle cogeneration
anoxic
46. 1. Split 2. double
air dryers
primary cogeneration output
what large rotors are made of
turbine casings
47. Equal and opposite reation
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48. 1. brass 2. copper 3. cupronickel
turbine casings
moisture separator
gas turbine efficiencies based on...
heat exchanger materials
49. King valve
liquid line aka
solid injection designs
Axial thrust
air ejectors
50. Seperately forged discs or wheels and shrunk onto shaft
2 stroke internal combustion
reaction turbine components
salometer
disc rotors
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