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Test your basic knowledge |
Power Engineering 2
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
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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. simple design 2. less piping 3. no freezing hazard
sealing strips made of...
mechanical overspeed trip
air cooling advantages over water cooling
difference between diesel and gas engines
2. 1. sliding vane 2. rotary lobe 3. rotary screw ( convex male lobes - pulse free)
aftercoolers
rotary compressor types
purpose of compressor lubrication
critical path method (CPM)
3. Most widely used - least amount of steam
disc rotors
single flow turbines
magneto ignition
two stage refrigeration system
4. Direct prosses applications - absorption refrigeration - heat recovery boiler
'bottoming cycle'
newton's 2nd law
secondary cogeneration output
moisture separator
5. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
to reduce steam and blade velocities
air dryer types
peak power
plant thermal effificienies
6. Change in momentum
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7. KW at 15C standard at sealevel with 60% RH
rotary compressor control
crosshead
nozzels made of...
gas turbine efficiencies based on...
8. Control a steady backpressure - sensing element in exhuast line
air leak tolerated in condenser up to...
jet condensers
brine
pressure sensitve governors
9. 1. Flyweights 2. coutner spring 3. function based on centrifugal force
tangs
air leak tolerated in condenser up to...
bank
mechanical governors
10. 1. brass 2. copper 3. cupronickel
velocity compounding
fluid/air cooler
reduce cavitation in extraction pumps
heat exchanger materials
11. Wrist pins that connect pistons to rod - retained bu circlips
unit
hx principles
velocity compounding
gudgeon pins
12. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades
surface condenser
velocity compounding
sprial valve
gas turbine operating principles
13. Use teflon or carbon to lubricate system
bank
methods to offset axial thrust
gas turbine components
oil free compressors
14. Help maintain definite thrust toward exhaust
balancing pipe
purpose of dry receiver
sprial valve
unfired
15. Change in direction causing a turbine to move
impulse force
droop
air ejectors
power oil
16. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
axial air compressors
types of turbines
reaction turbines use ____ bearings
close cycle disadvantages
17. 75 -000 to 100 -00 hours of operation
double flow turbines
gas turbine efficiencies based on...
gas turbine blades should be replaced every
air ejectors
18. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs
close cycle disadvantages
compression ratio
surging
mechanical overspeed trip
19. Made of cast iron and support by stay bolts to protect against a vacuum
water boxes
inlet air unloader advantages
clean turbine blading with
hunting
20. 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
axial air compressors
waste water treatment plant components
sprial valve
crossflow
21. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
special aspects of reaction turbine
jacking oil system
centrifugal air compressors advantages
intercoolers
22. Throttle body
single point fuel injection
mechanical overspeed trip
types of refrigerant evaporators
thrust adjsusting gear
23. 1. compression ration across compressor 2. turbine inlet temperature
disc rotors
ammonia compression cycle high side components
eutectic solution
2 major factos affecting gas turbine efficiency and power
24. Ground water monitoring device
Piezometer wells
balancing pipe
close cycle disadvantages
government regualtions for waste water
25. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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26. As prime movers in pulp and paper industry
non - condensing turbines used
power oil
coagulant aids
difference between diesel and gas engines
27. A concentrated solution at its critical point
double pipe hx
isochronous governing
sodium chloride
eutectic solution
28. 1. internal 2. external 3. equipment vendors 4. chemical suppliers 5. office equipement vendors
communication structure
selective catalytic reduction (SCR)
typical temperature for outlet on oil coolers
to reduce steam and blade velocities
29. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
heat exchanger materials
3 speed sensitive governors
convergent- divergent
jet condensers
30. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
project management
sealing strips made of...
turbine casings
mirco cogeneration advantages
31. 1. inlet to the convection section 2. betwen convection and radiant section 3. at radiant section outlet
gas turbine blades should be replaced every
centrifugal air compressors advantages
inlet cooling methods - evaporative
thermocouple locations in fired heaters
32. 1. control range of 0 to 100% load 2. energy efficient
camshaft is the link between
2 stroke internal combustion
ammonia compression cycle high side components
inlet modulating valve advantages
33. 1. charge drawn into cylinder is air only 2. fuel injected at high pressures 3. ignition due to high compression temperatuers
surface condenser
difference between diesel and gas engines
centrifugal air compressors advantages
distinguishing reaction turbine
34. 1. can - annular 2. annular 3. single- can
gudgeon pins
3 types of gas turbine combustors
regulation compressor systems
cross compound turbine
35. Air drawn from atmosphere - working fluid
R-134a
suction line unloading valve advantages
open cycle
hx principles
36. Contains 0.5kg of moisture for every 28 cubic meter of air
saturated air
close cycle
difference between diesel and gas engines
reaction turbines use ____ bearings
37. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
close cycle
air ejectors
single shaft combine cycle cogeneration
solid injection designs
38. Non - condensing turbine exhaust steam at...
cross compound turbine
Above or at atmospheric pressure
types of fired heaters
when impulse turbine pressure drops
39. 1. convergent 2. convergent- divergent
nozzles types
trunk type piston
balancing pipe
feature of impulse turbine
40. 43-49 degrees C
typical temperature for outlet on oil coolers
secondary cogeneration output
bank
isochronous governing
41. Unit produces electricity on an ongoing basis
purpose of compressor lubrication
selective catalytic reduction (SCR)
cogeneration reduces energy costs by...
base load
42. 1. plate 2. channel
Above or at atmospheric pressure
compressor valve types
Ammonia R-717
nozzels made of...
43. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices
oil system components
water/oil separator
gas turbine components
surface condenser
44. Needs to a high vacuum present in system before charging
refrigeration system charging
mechanical governors
axial air compressors
bay
45. 1. compressor section 2. combustor 3. turbine section
close cycle disadvantages
power oil
gas turbine components
clean turbine blading with
46. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases
convergent- divergent
refrigerant groups
hunting
crosshead
47. 'huff and puff' methods
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48. Forced or induced draft
double pipe hx
mechanical draft
water boxes
gas turbine operating principles
49. 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
gantt chart
jacking oil system
bank
marco cogeneration advantages
50. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
balancing pipe
air dryer types
govrenors classes
what large rotors are made of
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