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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. Cool compressed air before point of use
saturated air
mechanical draft
eutectic solution
aftercoolers
2. Needs to a high vacuum present in system before charging
suction line unloading valve advantages
adv of impulse turbine
double pipe hx
refrigeration system charging
3. Results in a gain in velocity - the moving blades change direction producing force
air leaks in condensers
pressure drop across first row of reation turbine
supercharge
Prevent thermal stresses
4. 1. planning 2. implementation 3. review
reaction turbine
project management
typical temperature for outlet on oil coolers
double flow turbines
5. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
solid injection designs
jacking oil system
'turbine'
non - condensing turbines used
6. 1. intake 2. compression 3. power 4. exhaust
non - condensables
4 stroke internal combustion
cogeneration reduces energy costs by...
electronic overspeed trip
7. A thrust block that enables the axial position of the rotor to be controlled
electronic overspeed trip
environmental management program
regulation compressor systems
thrust adjsusting gear
8. Control a steady backpressure - sensing element in exhuast line
mechanical overspeed trip
secondary cogeneration output
pressure sensitve governors
components of PM program
9. 1. lubricate sliding surfaces 2. cool bearings
biological removal of solids
speed droop
closed cycle advantages
lube oil system basic functions
10. Condensing turbines exhaust steam at...
Pressure below atmospheric
aerobic
salometer
balancing pipe
11. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer
purpose of dry receiver
solid injection designs
expansion valve
impulse buckets
12. Entire collection of all component
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13. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference
to reduce steam and blade velocities
R-134a
capacity
hx principles
14. Seperately forged discs or wheels and shrunk onto shaft
disc rotors
shaft seals
gantt chart
mechanical drive turbine
15. Higher altitudes
waste water treatment purpose
higher compression ratios needed at...
condenser tube sheets made of...
types of reboilers
16. 1. individual pump system 2. distributor system 3. common rail system
tandem compound turbines
oil free compressors
solid injection designs
thrust adjsusting gear
17. Independant of the governor - inductive sensor (magnetic speed pickups)
avoid surging
electronic overspeed trip
cross compound turbine
mirco cogeneration advantages
18. Centrifugal pumps
ejector condenser
extraction pumps usually are _____ type
distinguishing reaction turbine
cogeneration
19. A concentrated solution at its critical point
eutectic solution
Piezometer wells
nozzles types
barring gears prevent
20. 'huff and puff' methods
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21. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting
jacking oil system
dummy pistons
environmental management program
aero- derivative turbines
22. Calcium chloride and water - -51
cogeneration
R-22
BOD (biological oxygen demand)
brine
23. 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)
close cycle disadvantages
inlet cooling methods - evaporative
convergent nozzles
24. 1. plate 2. channel
anaerobic digesters
compressor valve types
'topping cycle'
purpose of compressor lubrication
25. Use antifriction bearings
air leaks in condensers
avoid surging
ISO 9000 certified
aero- derivative turbines
26. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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27. 1. kettle 2. thermosyphon horizontal 3. thermosyphon vertical
regulation compressor systems
sentinel vales
extraction governor
types of reboilers
28. 1. air compressed to 1100-3000kPa 2. combustion at 2000C 3. mixed with air - cooled to 918C on exit 4. combustor gases go to turbine 5. gases from turbine leave at atmospheric pressure and 500-640C
closed cycle advantages
isochronous governing
centrifugal air compressors advantages
gas turbine operating principles
29. Results in pressure drop and increased velocity
ejector condenser
non - condensing turbines used
R-134a
steam expanding through stationary nozzles
30. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
sprial valve
isochronous governing
nozzels made of...
'bottoming cycle'
31. Each stage seperated by partitions - nozzles set into diaphragms
rotary compressor types
pressure compounding
thermal load control
compressor valve types
32. Direct contact type - uses converging nozzles and in moderate vacuum
camshaft is the link between
ejector condenser
solid injection designs
power oil
33. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control
adv of impulse turbine
2 stroke internal combustion
rotary compressor control
single shaft combine cycle cogeneration
34. Dry surface coolers - no contact convection hx - aka finned tube exchangers
speed droop
aerial coolers
sodium chloride
a tandem turbine coupled by flexible couplings
35. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell
automatic extraction
jet condensers
close cycle
reduce cavitation in extraction pumps
36. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method
rotary compressor types
air leaks in condensers
clean turbine blading with
fluid/air cooler
37. The crankshaft and valve train
speed droop
types of reciprocation compressors
duct burners in HRSG
camshaft is the link between
38. 1. Split 2. double
what large rotors are made of
pressure compounding
turbine casings
R-22
39. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
oil system components
fluid/air cooler
air dryers
air dryer types
40. More rounded than impulse blading
electronic overspeed trip
crosshead
mirco cogeneration advantages
reaction blading
41. Air flow is horizontal
crossflow
types of gas turbines
critical pressure
special aspects of reaction turbine
42. 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
compression ratio
types of turbines
waste water treatment plant components
types of turbines
43. Used to satisfy process steam requirements
suction line unloading valve advantages
environmental management program
bakpressure turbines
double- flow in reaction turbines
44. Contains 0.5kg of moisture for every 28 cubic meter of air
Ammonia R-717
saturated air
bank
extraction pumps usually are _____ type
45. Small pressure drop
methods to detect cooling water leaks
types of refrigerant evaporators
convergent nozzles
regulation compressor systems
46. Type of hydrometer indicating % of salt in solution
salometer
compressor valve types
legal requirements of record keeping
biological removal of solids
47. Throttle body
scavenging
single point fuel injection
bakpressure turbines
reduce cavitation in extraction pumps
48. Made of cast iron and support by stay bolts to protect against a vacuum
impulse buckets
water boxes
crosshead
gas turbine efficiencies based on...
49. Most widely used - least amount of steam
saturated air
heat exchanger materials
single flow turbines
waste water treatment plant components
50. A verticle well is used to increase the NPSH - gives better performance and less cavitation
single point fuel injection
double flow turbines
reduce cavitation in extraction pumps
nozzles types