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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. Up to 60-90%
electronic overspeed trip
cogeneration reduces energy costs by...
purpose of compressor lubrication
closed cycle advantages
2. Compression ignititon engines
dry low NOx combustion systems
diesel engines aka
ammonia compression cycle high side components
extraction governor
3. 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
critical path method (CPM)
types of fired heaters
types of gas turbines
R-22
4. Made of cast iron and support by stay bolts to protect against a vacuum
isochronous governing
reaction turbines use ____ bearings
water boxes
gas turbine efficiencies based on...
5. 1. intake 2. compression 3. power 4. exhaust
2 stroke internal combustion
4 stroke internal combustion
non - condensing turbines used
refrigerant groups
6. 1. widely used 2. single stage 3. impulse turbine
thrust adjsusting gear
mechanical drive turbine
aerobic
trunk type piston
7. 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
servo motor
to reduce steam and blade velocities
gas turbine advantages
axial compressors
8. 1. brass 2. copper 3. cupronickel
methods to offset axial thrust
clean turbine blading with
R-134a
heat exchanger materials
9. 1. compression ration across compressor 2. turbine inlet temperature
oil system components
2 major factos affecting gas turbine efficiency and power
4 stroke internal combustion
Axial thrust
10. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting
environmental management program
types of turbines
gas turbine disadvantages
surface condenser
11. Center- to- center distance between baffles
baffle pitch
avoid surging
steam expanding through stationary nozzles
aerobic
12. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
communication structure
centrifugal air compressors advantages
hx principles
isochronous governing
13. Air flow is horizontal
anaerobic digesters
crossflow
primary cogeneration output
sodium chloride
14. Atmospheric or hyperbolic
a tandem turbine coupled by flexible couplings
natural draft cooling tower
newton's 3rd law of motion
turbine casings
15. Made of polyethylene - skimming from the surface
water/oil separator
higher compression ratios needed at...
gas turbine advantages
mechanical overspeed trip
16. 'huff and puff' methods
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17. 1. activated sludge 2. rotating biological contactors 3. trickling filters
biological removal of solids
centrifugal air compressors advantages
air dryer types
'turbine'
18. Direct prosses applications - absorption refrigeration - heat recovery boiler
secondary cogeneration output
waste water treatment plant components
double pipe hx
open cycle
19. Either fixed production or varying
diesel engines aka
thermal load control
thrust adjsusting gear
double flow turbines
20. At high temperatures a material stretches
secondary cogeneration output
isochronous governing
natural draft cooling tower
creep
21. Calcium chloride and water - -51
government regualtions for waste water
brine
oil system components
air cooling advantages over water cooling
22. 1. Flyweights 2. coutner spring 3. function based on centrifugal force
cogeneration reduces energy costs by...
mechanical drive turbine
inlet modulating valve advantages
mechanical governors
23. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
mechanical draft
R-134a
reaction turbines use ____ bearings
trunk type piston
24. Countries with small grids or specail grid requirements - has a high efficiency at base loads
dual shaft combined cycle cogeneration
2 stroke internal combustion
electronic overspeed trip
pressure sensitve governors
25. 1. internal 2. external 3. equipment vendors 4. chemical suppliers 5. office equipement vendors
communication structure
types of reciprocation compressors
centrifugal air compressors advantages
refrigerant groups
26. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants
cogeneration application areas
higher compression ratios needed at...
when impulse turbine pressure drops
convergent nozzles
27. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
jacking oil system
unit
air take 'pulse cleaing systems'
gudgeon pins
28. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
sentinel vales
refrigeration safety controls
peak power
special aspects of reaction turbine
29. Does not contain dissolved oxygen
components of PM program
anaerobic
types of reboilers
expansion valve
30. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity
marco cogeneration advantages
purpose of a wet receiver
R-134a
refrigerant groups
31. Use teflon or carbon to lubricate system
cogeneration application areas
turbine casings
oil free compressors
components of PM program
32. Throttle body
First stage of gas turbine nozzles made of...
types of reciprocation compressors
inlet cooling methods - evaporative
single point fuel injection
33. Simple generator - light - no battery - hotter spark at higher speeds
magneto ignition
dynamic compressor control
compression ratio
centrifugal air compressors advantages
34. Refers to the production of power during overload demands
compressor valve types
selective catalytic reduction (SCR)
peak power
coalescing filters
35. Driving rotating equipment
tandem compound turbines
primary cogeneration output
environmental management program
gas turbine components
36. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87
R-22
avoid surging
open cycle
expansion valve
37. Too small to settle out - add floc
angstrom particles
condenser tube sheets made of...
types of reciprocation compressors
largest hx in a plant is...
38. Air drawn from atmosphere - working fluid
govrenors classes
open cycle
turbine casings
refrigerant groups
39. 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
environmental management program
coalescing filters
avoid surging
refrigerant groups
40. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
air dryers
axial compressors
air ejectors
air dryer types
41. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced
typical temperature for outlet on oil coolers
types of refrigerant evaporators
sprial valve
types of gas turbines
42. Higher altitudes
combined cycle cogeneration
inlet modulating valve advantages
a tandem turbine coupled by flexible couplings
higher compression ratios needed at...
43. 1. Split 2. double
turbine casings
ammonia compression cycle high side components
droop
close cycle disadvantages
44. Requires annual review of SOPs
ISO 9000 certified
ammonia compression cycle high side components
purpose of a wet receiver
non - condensables
45. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
dynamic compressor control
gas turbine operating principles
surging
impulse buckets
46. Change in momentum
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47. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
R-134a
tangs
balancing pipe
Axial thrust
48. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled
components of PM program
newton's 3rd law of motion
bank
condenser tube attachment methods
49. Increase pressure affecting performance of condenser but do not incresase temperature
Piezometer wells
thermocouple locations in fired heaters
gas turbine advantages
air leaks in condensers
50. Has steam directed through baffles making 4 passes
downflow condenser
nozzels made of...
nozzles types
dual shaft combined cycle cogeneration