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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. Pressure does not drop across the moving blades
feature of impulse turbine
reaction turbine components
unit
reaction blading
2. Have advantage of high efficiencies - 10% greater than centrifugal compressors
gudgeon pins
axial air compressors
bank
BOD (biological oxygen demand)
3. Polymers (polyelectrolytes)
reaction blading
non - condensables
baffle pitch
coagulant aids
4. Does not contain dissolved oxygen
special aspects of reaction turbine
double pipe hx
anaerobic
2 stroke internal combustion
5. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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6. Needs to a high vacuum present in system before charging
gas turbine components
balancing pipe
condenser safety devices
refrigeration system charging
7. Moisture removed by centrifugal force
moisture separator
primary cogeneration output
gantt chart
servo motor
8. Straight condensing
thrust adjsusting gear
automatic extraction
cogeneration reduces energy costs by...
adv of impulse turbine
9. Refers to the production of electricity form two sources utilizing one fuel source
convergent nozzles
diesel engines aka
combined cycle cogeneration
aerial coolers
10. Simple generator - light - no battery - hotter spark at higher speeds
starters transmit power to front end of gas turbnine by...
magneto ignition
largest hx in a plant is...
types of reciprocation compressors
11. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
thermocouple locations in fired heaters
to reduce steam and blade velocities
mechanical overspeed trip
shaft seals
12. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
regulation compressor systems
coalescing filters
jacking oil system
salometer
13. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
reaction turbines use ____ bearings
expansion valve
Pressure below atmospheric
shaft seals
14. 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
methods to offset axial thrust
refrigerant groups
cross compound turbine
two stage refrigeration system
15. Atmospheric or hyperbolic
brine
natural draft cooling tower
2 stroke internal combustion
R-12
16. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices
oil system components
purpose of compressor lubrication
Axial thrust
types of gas turbines
17. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced
sprial valve
mirco cogeneration advantages
gantt chart
close cycle
18. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
pressure sensitve governors
double pipe hx
intercoolers
dynamic compressor control
19. 1. increases net power 2. clean working fluid 3. cheap fuel can be used
R-12
condenser tube sheets made of...
largest hx in a plant is...
closed cycle advantages
20. 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
coagulant aids
marco cogeneration advantages
brine
selective catalytic reduction (SCR)
21. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
adv of impulse turbine
types of reboilers
special aspects of reaction turbine
single flow turbines
22. Non - condensing turbine exhaust steam at...
bay
extraction pumps usually are _____ type
what large rotors are made of
Above or at atmospheric pressure
23. Help maintain definite thrust toward exhaust
staging
R-12
balancing pipe
purpose of a wet receiver
24. 1. to increase steam production 2. control superheater temperatures 3. meet process demands
sodium chloride
reduce cavitation in extraction pumps
air ejectors
duct burners in HRSG
25. Air flow is upward
to reduce steam and blade velocities
counterflow
impulse force
waste water treatment purpose
26. Quantity ofr compressed air and delivered air by the compressor
reduce cavitation in extraction pumps
air ejectors
capacity
waste water treatment purpose
27. Has steam directed through baffles making 4 passes
'turbine'
Ammonia R-717
downflow condenser
nozzels made of...
28. 1. spray 2. fog 3. special evaporator pads
when impulse turbine pressure drops
condenser safety devices
staging
inlet cooling methods - evaporative
29. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases
lube oil system basic functions
'turbine'
convergent- divergent
Ammonia R-717
30. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature
compressor valve types
project management
staging
legal requirements of record keeping
31. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference
suction line unloading valve advantages
waste water treatment purpose
hx principles
reaction turbine components
32. Use teflon or carbon to lubricate system
thermocouple locations in fired heaters
selective catalytic reduction (SCR)
oil free compressors
solid injection designs
33. Steam expands and pressure drops as it passes through moving blades - unbalance pressure
Above or at atmospheric pressure
dummy pistons
reaction turbine
anaerobic digesters
34. Is the ratio of the discharge pressure to the intake pressure absolute
compression ratio
moisture separator
electronic overspeed trip
bay
35. 1. contact - 'jet' 2. surface
dual shaft combined cycle cogeneration
condenser types
cross compound turbine
aerobic
36. 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
waste water treatment plant components
typical temperature for outlet on oil coolers
impulse force
droop
37. King valve
biological removal of solids
liquid line aka
anoxic
close cycle
38. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters
centrifugal air compressors advantages
saturated air
centrifugal air compressor disadvantages
critical pressure
39. 1. intake 2. compression 3. power 4. exhaust
plant thermal effificienies
3 speed sensitive governors
4 stroke internal combustion
bank
40. To remove and properly dispose of pollutants
special aspects of reaction turbine
waste water treatment purpose
aerial coolers
heat exchanger materials
41. A thrust block that enables the axial position of the rotor to be controlled
special aspects of reaction turbine
gas turbine blades should be replaced every
intercoolers
thrust adjsusting gear
42. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
critical pressure
types of turbines
methods to offset axial thrust
plant thermal effificienies
43. 1. list of all equipment 2. PM checklist 3. fequency 4. repairs and costs 5. record keeping 6. cost management
single shaft combine cycle cogeneration
surging
'gas turbine'
components of PM program
44. Large turbines couple together on a single shaft applied to one generator
'turbine'
largest hx in a plant is...
tandem compound turbines
legal requirements of record keeping
45. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting
pressure compounding
environmental management program
impulse force
axial air compressors
46. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
non - condensing turbines used
convergent- divergent
surface condenser
Ammonia R-717
47. Cool compressed air before point of use
refrigerant groups
aftercoolers
convergent nozzles
water/oil separator
48. Integral part of the governing system - in the front end and engages at 10-12% above normal operating speed
mechanical overspeed trip
close cycle disadvantages
R-22
air take 'pulse cleaing systems'
49. Change in direction causing a turbine to move
double flow turbines
compression ratio
impulse force
compressor valve types
50. Use of a rotary lobe air blower
thermal load control
supercharge
First stage of gas turbine nozzles made of...
magneto ignition