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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. Seperately forged discs or wheels and shrunk onto shaft
condenser safety devices
disc rotors
avoid surging
tandem compound turbines
2. Has steam directed through baffles making 4 passes
moisture separator
2 major factos affecting gas turbine efficiency and power
downflow condenser
when impulse turbine pressure drops
3. Direct contact type - uses converging nozzles and in moderate vacuum
purpose of a wet receiver
hairpin hx
ejector condenser
two stage refrigeration system
4. Higher power and speeds
double flow turbines
types of reboilers
bakpressure turbines
mirco cogeneration advantages
5. Made of polyethylene - skimming from the surface
ISO 9000 certified
base load
double- flow in reaction turbines
water/oil separator
6. A thrust block that enables the axial position of the rotor to be controlled
creep
dummy pistons
headworks
thrust adjsusting gear
7. Calcium chloride and water - -51
heat exchanger materials
Piezometer wells
brine
saturated air
8. Used to satisfy process steam requirements
bakpressure turbines
unfired
Pressure below atmospheric
headworks
9. More rounded than impulse blading
crossflow
air ejectors
reaction blading
ammonia compression cycle low side
10. 1. contact - 'jet' 2. surface
gas turbine blades should be replaced every
water/oil separator
condenser types
typical temperature for outlet on oil coolers
11. 1. Carbon ring 2. labyrinth seal 3. water seal
shaft seals
axial compressors
staging
ammonia compression cycle high side components
12. 1. compressor discharge 2. condenser 3. liquid receiver
salometer
ammonia compression cycle high side components
extraction pumps usually are _____ type
types of refrigerant evaporators
13. Increase pressure affecting performance of condenser but do not incresase temperature
unfired
dual shaft combined cycle cogeneration
air leaks in condensers
cogeneration application areas
14. Monel metal - high tensile strength - nickel copper alloy
regulation compressor systems
bank
nozzels made of...
refrigerant groups
15. Direct prosses applications - absorption refrigeration - heat recovery boiler
purpose of a wet receiver
servo motor
refrigeration system charging
secondary cogeneration output
16. '3 ports' 1. intake and exhaust 2. compression and ignititon
sodium chloride
coalescing filters
2 stroke internal combustion
centrifugal air compressor disadvantages
17. 1. high manufacturing costs 2. slow speed changes 3. low efficiencies at low throttle
cross compound turbine
gas turbine disadvantages
ISO 9000 certified
moisture separator
18. Entire collection of all component
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19. 1. compressor section 2. combustor 3. turbine section
gas turbine components
R-12
what large rotors are made of
surface condenser
20. KW at 15C standard at sealevel with 60% RH
ammonia compression cycle high side components
counterflow
gas turbine efficiencies based on...
types of turbines
21. Most widely used - least amount of steam
air dryer types
pressure compounding
refrigeration system charging
single flow turbines
22. Waste heat only
air take 'pulse cleaing systems'
inlet modulating valve advantages
surface condenser
unfired
23. Made of steel - used for double acting pistons - acts as a piston rod
impulse force
purpose of dry receiver
heat exchanger materials
crosshead
24. 1. Split 2. double
air take 'pulse cleaing systems'
turbine casings
double- flow in reaction turbines
'bottoming cycle'
25. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
inlet air unloader advantages
condenser types
plant thermal effificienies
close cycle disadvantages
26. The space wherein the liquid refrigerant absorbs heat and boils
two stage refrigeration system
headworks
reaction turbine
refrigerant evaporator
27. 1. lubricate sliding surfaces 2. cool bearings
refrigerant evaporator
lube oil system basic functions
ejector condenser
solid injection designs
28. Center- to- center distance between baffles
reaction turbine components
baffle pitch
mirco cogeneration advantages
mechanical drive turbine
29. Same principle as a turbine but acting in reverse
axial compressors
extraction governor
lube oil system basic functions
scavenging
30. Throttle body
hx principles
single point fuel injection
'turbine'
cogeneration reduces energy costs by...
31. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
types of turbines
single point fuel injection
mechanical overspeed trip
to reduce steam and blade velocities
32. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants
liquid line aka
R-12
condenser types
cogeneration application areas
33. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
newton's 2nd law
turbine casings
government regualtions for waste water
to reduce steam and blade velocities
34. Moving blades on a rotor
regulation compressor systems
impulse buckets
Prevent thermal stresses
water/oil separator
35. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity
air leak tolerated in condenser up to...
purpose of a wet receiver
gas turbine components
extraction pumps usually are _____ type
36. Use teflon or carbon to lubricate system
crossflow
oil free compressors
a tandem turbine coupled by flexible couplings
air take 'pulse cleaing systems'
37. 1. spray 2. fog 3. special evaporator pads
'bottoming cycle'
components of PM program
tangs
inlet cooling methods - evaporative
38. 1. intake 2. compression 3. power 4. exhaust
Pressure below atmospheric
4 stroke internal combustion
heat exchanger materials
air leaks in condensers
39. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled
higher compression ratios needed at...
condenser safety devices
single flow turbines
condenser tube attachment methods
40. Refers to the production of power during overload demands
centrifugal air compressors advantages
extraction governor
condenser tube attachment methods
peak power
41. 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
oil free compressors
types of turbines
water/oil separator
gas turbine advantages
42. The condenser
largest hx in a plant is...
condenser safety devices
intercoolers
reaction turbine components
43. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
creep
jacking oil system
unit
base load
44. Chrome- iron alloy
sealing strips made of...
electronic overspeed trip
Prevent thermal stresses
ejector condenser
45. Discharge steam when excessive backpressure exists
speed droop
sentinel vales
secondary cogeneration output
higher compression ratios needed at...
46. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
aero- derivative turbines
surface condenser
inlet air unloader advantages
gas turbine blades should be replaced every
47. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
jacking oil system
newton's 2nd law
single point fuel injection
Ammonia R-717
48. Rows of stationart baldes with alternating rows of moving blades
sentinel vales
sodium chloride
coagulant aids
reaction turbine components
49. Ground water monitoring device
staging
refrigeration system charging
feature of impulse turbine
Piezometer wells
50. Eliminates thrust - steam admitted midway along casing
isochronous governing
largest hx in a plant is...
double- flow in reaction turbines
environmental management program