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Test your basic knowledge |
Power Engineering 2
Start Test
Study First
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. compressor discharge 2. condenser 3. liquid receiver
ammonia compression cycle high side components
inlet modulating valve advantages
reaction turbines use ____ bearings
axial air compressors
2. More rounded than impulse blading
fluid/air cooler
suction line unloading valve advantages
reaction blading
project management
3. The condenser
compression ratio
largest hx in a plant is...
distinguishing reaction turbine
electronic overspeed trip
4. 1. Split 2. double
turbine casings
air take 'pulse cleaing systems'
moisture separator
non - condensing turbines used
5. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8
air dryer types
aftercoolers
R-12
cross compound turbine
6. Cause high discharge pressures - more power requirements - reduces capacity
non - condensables
condenser tube attachment methods
solid injection designs
aerobic
7. King valve
cross compound turbine
liquid line aka
communication structure
BOD (biological oxygen demand)
8. Reduces steam pressure and velocity in two or more steps
anaerobic
types of reciprocation compressors
pressure- velocity compounding
surging
9. Higher power and speeds
double flow turbines
gas turbine operating principles
steam expanding through stationary nozzles
dry low NOx combustion systems
10. Made of polyethylene - skimming from the surface
water/oil separator
staging
disc rotors
inlet cooling methods - evaporative
11. A verticle well is used to increase the NPSH - gives better performance and less cavitation
balancing pipe
bay
types of reciprocation compressors
reduce cavitation in extraction pumps
12. Very high speed with extremely high centrigufal force and high frictional losses
critical path method (CPM)
impulse turbine disadvantage
anoxic
heat exchanger materials
13. Refers only to specificly to the turbine section
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14. Compression ignititon engines
diesel engines aka
purpose of compressor lubrication
single shaft combine cycle cogeneration
critical pressure
15. A1 - A2 - A3 - B1 - B2 and B3 A = toxicity not identified under 400ppm B = toxicity identified under 400ppm 1 = not flammable 2 = low flammable limit 3 = highly flammable
refrigerant groups
sentinel vales
creep
distinguishing reaction turbine
16. Atmospheric or hyperbolic
double- flow in reaction turbines
hx principles
refrigeration safety controls
natural draft cooling tower
17. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface
scavenging
brine
hairpin hx
baffle pitch
18. Use teflon or carbon to lubricate system
types of fired heaters
ammonia compression cycle low side
downflow condenser
oil free compressors
19. Seperately forged discs or wheels and shrunk onto shaft
condenser tube attachment methods
disc rotors
unfired
types of turbines
20. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily
suction line unloading valve advantages
expansion valve
surging
sodium chloride
21. Equal and opposite reation
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22. Straight condensing
pressure sensitve governors
nozzles types
automatic extraction
magneto ignition
23. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
air dryer types
impulse buckets
anoxic
turbine casings
24. Needs to a high vacuum present in system before charging
Above or at atmospheric pressure
dual shaft combined cycle cogeneration
condenser tube sheets made of...
refrigeration system charging
25. Grit chambers and screens for waster water system
scavenging
headworks
surface condenser
critical path method (CPM)
26. 1. compression ration across compressor 2. turbine inlet temperature
2 major factos affecting gas turbine efficiency and power
Prevent thermal stresses
unit
sprial valve
27. 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
expansion valve
gas turbine operating principles
Above or at atmospheric pressure
hairpin hx
28. 1. lubricate sliding surfaces 2. cool bearings
lube oil system basic functions
pressure sensitve governors
air leak tolerated in condenser up to...
secondary cogeneration output
29. Unit produces electricity on an ongoing basis
peak power
air ejectors
base load
inlet cooling methods - evaporative
30. Pressure does not drop across the moving blades
feature of impulse turbine
R-12
heat exchanger materials
brine
31. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
salometer
marco cogeneration advantages
3 speed sensitive governors
aero- derivative turbines
32. Small pressure drop
automatic extraction
jacking oil system
thermocouple locations in fired heaters
convergent nozzles
33. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
mirco cogeneration advantages
inlet air unloader advantages
Above or at atmospheric pressure
axial air compressors
34. The volum swept out by the piston - same through all stages
axial compressors
compressor displacement
brine
4 stroke internal combustion
35. Removal of exhaust gases by blow air through
gantt chart
aero- derivative turbines
scavenging
sprial valve
36. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
non - condensing turbines used
selective catalytic reduction (SCR)
double flow turbines
Ammonia R-717
37. Recuperative category - high pressure
types of turbines
compressor valve types
regulation compressor systems
double pipe hx
38. Controlled pressure from intermediate stages of turbine
hairpin hx
speed droop
diesel engines aka
extraction governor
39. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer
purpose of dry receiver
clean turbine blading with
centrifugal air compressors advantages
open cycle
40. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices
closed cycle advantages
critical path method (CPM)
oil system components
types of turbines
41. 1. CCME 2. CEQG 3. CWQG 4. US EPA
fluid/air cooler
government regualtions for waste water
electronic overspeed trip
difference between diesel and gas engines
42. 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
crosshead
coagulant aids
centrifugal air compressors advantages
critical path method (CPM)
43. 'booster' compressor
two stage refrigeration system
non - condensables
ammonia compression cycle high side components
hairpin hx
44. No dissolved oxygen but does contain nitrates
inlet modulating valve advantages
intercoolers
anoxic
Piezometer wells
45. Means to come together and form one mass - removes oil and water from air
types of reciprocation compressors
coalescing filters
downflow condenser
purpose of a wet receiver
46. The utilization of one form of input energy to generate two or more forms of output energy
water/oil separator
non - condensables
First stage of gas turbine nozzles made of...
cogeneration
47. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%
project management
nozzels made of...
plant thermal effificienies
hairpin hx
48. 1. Condensing 2. non - condensing (backpressure)
types of turbines
regulation compressor systems
typical temperature for outlet on oil coolers
lube oil system basic functions
49. Discharge steam when excessive backpressure exists
mechanical overspeed trip
sentinel vales
adv of impulse turbine
typical temperature for outlet on oil coolers
50. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants
anaerobic
cogeneration application areas
single point fuel injection
velocity compounding