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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. Does not contain dissolved oxygen
anaerobic
two stage refrigeration system
newton's 2nd law
types of gas turbines
2. 1. Carbon ring 2. labyrinth seal 3. water seal
purpose of compressor lubrication
components of PM program
critical pressure
shaft seals
3. Pressure drops across the moving blades
govrenors classes
distinguishing reaction turbine
electronic overspeed trip
moisture separator
4. Compression ignititon engines
droop
cogeneration
diesel engines aka
aftercoolers
5. Steam expands and pressure drops as it passes through moving blades - unbalance pressure
gas turbine advantages
'topping cycle'
anoxic
reaction turbine
6. Either fixed production or varying
thermal load control
aftercoolers
servo motor
clean turbine blading with
7. A concentrated solution at its critical point
expansion valve
eutectic solution
government regualtions for waste water
types of gas turbines
8. Change in momentum
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9. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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10. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature
bay
anoxic
staging
ammonia compression cycle low side
11. A thrust block that enables the axial position of the rotor to be controlled
thrust adjsusting gear
downflow condenser
ISO 9000 certified
turbocharge
12. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer
water/oil separator
BOD (biological oxygen demand)
purpose of dry receiver
gas turbine blades should be replaced every
13. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
sprial valve
special aspects of reaction turbine
suction line unloading valve advantages
dynamic compressor control
14. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)
govrenors classes
condenser safety devices
centrifugal air compressors advantages
anaerobic digesters
15. To remove and properly dispose of pollutants
waste water treatment purpose
suction line unloading valve advantages
supercharge
expansion valve
16. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%
trunk type piston
water/oil separator
'turbine'
plant thermal effificienies
17. Use of a rotary lobe air blower
adv of impulse turbine
isochronous governing
supercharge
combined cycle cogeneration
18. Working fluid is compress then preheated in regenerator
gas turbine blades should be replaced every
cross compound turbine
close cycle
natural draft cooling tower
19. Large turbines couple together on a single shaft applied to one generator
critical path method (CPM)
reaction turbine components
purpose of dry receiver
tandem compound turbines
20. Sagging and hogging - 20-40rpm
gantt chart
types of turbines
nozzels made of...
barring gears prevent
21. 1. increases net power 2. clean working fluid 3. cheap fuel can be used
closed cycle advantages
duct burners in HRSG
critical pressure
oil system components
22. 1. brass 2. copper 3. cupronickel
sodium chloride
heat exchanger materials
gas turbine components
ammonia compression cycle high side components
23. Equal and opposite reation
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24. 1. Condensing 2. non - condensing (backpressure)
types of gas turbines
types of turbines
anaerobic
inlet air unloader advantages
25. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters
capacity
inlet cooling methods - evaporative
base load
centrifugal air compressor disadvantages
26. Seperately forged discs or wheels and shrunk onto shaft
sodium chloride
oil system components
types of gas turbines
disc rotors
27. Overall master plan - comprehensive program
double- flow in reaction turbines
gantt chart
intercoolers
duct burners in HRSG
28. Change in direction causing a turbine to move
Piezometer wells
base load
impulse force
starters transmit power to front end of gas turbnine by...
29. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices
purpose of dry receiver
impulse turbine disadvantage
typical temperature for outlet on oil coolers
refrigeration safety controls
30. Large turbines with a generator on each shaft
thermal load control
cross compound turbine
compressor displacement
coagulant aids
31. Monel metal - high tensile strength - nickel copper alloy
nozzels made of...
gas turbine operating principles
Above or at atmospheric pressure
staging
32. Cool compressed air before point of use
aftercoolers
oil system components
coalescing filters
oil free compressors
33. 1. large volumes of air 2. simple and rugged 3. low maintenance
hunting
tandem compound turbines
sodium chloride
centrifugal air compressors advantages
34. 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
surging
refrigerant groups
angstrom particles
suction line unloading valve advantages
35. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
a tandem turbine coupled by flexible couplings
biological removal of solids
types of turbines
purpose of compressor lubrication
36. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced
camshaft is the link between
sprial valve
hx principles
cogeneration reduces energy costs by...
37. On the exhaust side - drives the blower - being connected to the same shaft - increases power by 50-70% as more air is forced into the engine
what large rotors are made of
turbocharge
pressure compounding
gantt chart
38. Have advantage of high efficiencies - 10% greater than centrifugal compressors
what large rotors are made of
refrigerant evaporator
thermocouple locations in fired heaters
axial air compressors
39. Dry surface coolers - no contact convection hx - aka finned tube exchangers
liquid line aka
gas turbine disadvantages
aerial coolers
project management
40. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8
Above or at atmospheric pressure
shaft seals
R-12
air dryer types
41. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates
scavenging
diesel engines aka
speed droop
types of refrigerant evaporators
42. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily
servo motor
lube oil system basic functions
suction line unloading valve advantages
barring gears prevent
43. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants
cogeneration application areas
impulse force
cogeneration reduces energy costs by...
impulse buckets
44. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
to reduce steam and blade velocities
secondary cogeneration output
dynamic compressor control
gas turbine efficiencies based on...
45. Refers only to specificly to the turbine section
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46. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
moisture separator
reaction turbines use ____ bearings
Above or at atmospheric pressure
refrigerant evaporator
47. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting
primary cogeneration output
eutectic solution
environmental management program
largest hx in a plant is...
48. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell
sealing strips made of...
'bottoming cycle'
3 speed sensitive governors
jet condensers
49. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
jacking oil system
saturated air
cross compound turbine
scavenging
50. Results in pressure drop and increased velocity
unit
steam expanding through stationary nozzles
jacking oil system
methods to detect cooling water leaks