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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. Change in direction causing a turbine to move
impulse force
extraction governor
suction line unloading valve advantages
R-134a
2. A concentrated solution at its critical point
cogeneration application areas
critical pressure
eutectic solution
impulse turbine disadvantage
3. Made of cast iron and support by stay bolts to protect against a vacuum
refrigeration safety controls
mechanical governors
cogeneration application areas
water boxes
4. Direct contact type - uses converging nozzles and in moderate vacuum
government regualtions for waste water
aero- derivative turbines
ejector condenser
dry low NOx combustion systems
5. 1. brass 2. copper 3. cupronickel
base load
heat exchanger materials
gas turbine blades should be replaced every
Above or at atmospheric pressure
6. Help maintain definite thrust toward exhaust
mechanical overspeed trip
balancing pipe
camshaft is the link between
surface condenser
7. Polymers (polyelectrolytes)
purpose of a wet receiver
coagulant aids
compression ratio
Above or at atmospheric pressure
8. 1. simple design 2. less piping 3. no freezing hazard
environmental management program
downflow condenser
a tandem turbine coupled by flexible couplings
air cooling advantages over water cooling
9. The utilization of one form of input energy to generate two or more forms of output energy
cogeneration
waste water treatment plant components
air dryers
rotary compressor types
10. Made of steel - used for double acting pistons - acts as a piston rod
counterflow
staging
crosshead
sprial valve
11. Very high speed with extremely high centrigufal force and high frictional losses
gantt chart
non - condensing turbines used
marco cogeneration advantages
impulse turbine disadvantage
12. 1. can - annular 2. annular 3. single- can
aftercoolers
single point fuel injection
3 types of gas turbine combustors
expansion valve
13. Recuperative category - high pressure
convergent nozzles
combined cycle cogeneration
newton's 2nd law
double pipe hx
14. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates
counterflow
types of refrigerant evaporators
duct burners in HRSG
ammonia compression cycle high side components
15. Refers to the production of electricity form two sources utilizing one fuel source
capacity
mirco cogeneration advantages
magneto ignition
combined cycle cogeneration
16. A verticle well is used to increase the NPSH - gives better performance and less cavitation
baffle pitch
reduce cavitation in extraction pumps
reaction turbine components
sodium chloride
17. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles
sentinel vales
gas turbine disadvantages
impulse buckets
air ejectors
18. Results in a gain in velocity - the moving blades change direction producing force
capacity
critical pressure
sealing strips made of...
pressure drop across first row of reation turbine
19. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based
saturated air
difference between diesel and gas engines
R-134a
centrifugal air compressors advantages
20. Condensing turbines exhaust steam at...
centrifugal air compressor disadvantages
Pressure below atmospheric
Axial thrust
refrigeration safety controls
21. Quantity ofr compressed air and delivered air by the compressor
oil system components
centrifugal air compressors advantages
hunting
capacity
22. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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23. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston
cross compound turbine
anaerobic digesters
inlet air unloader advantages
types of reciprocation compressors
24. 1. CCME 2. CEQG 3. CWQG 4. US EPA
government regualtions for waste water
ammonia compression cycle low side
cross compound turbine
thermocouple locations in fired heaters
25. 1. inlet to the convection section 2. betwen convection and radiant section 3. at radiant section outlet
aerobic
aero- derivative turbines
thermocouple locations in fired heaters
environmental management program
26. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
diesel engines aka
servo motor
expansion valve
inlet air unloader advantages
27. 1. high manufacturing costs 2. slow speed changes 3. low efficiencies at low throttle
angstrom particles
R-22
gas turbine disadvantages
unfired
28. Change in momentum
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29. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
sealing strips made of...
tangs
eutectic solution
gas turbine operating principles
30. Same principle as a turbine but acting in reverse
unit
staging
mechanical overspeed trip
axial compressors
31. 'huff and puff' methods
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32. Refers to the production of power during overload demands
refrigerant groups
methods to offset axial thrust
ejector condenser
peak power
33. Controlled pressure from intermediate stages of turbine
types of gas turbines
jacking oil system
a tandem turbine coupled by flexible couplings
extraction governor
34. 1. to increase steam production 2. control superheater temperatures 3. meet process demands
pressure compounding
dummy pistons
critical pressure
duct burners in HRSG
35. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell
jet condensers
waste water treatment purpose
critical pressure
reduce cavitation in extraction pumps
36. Each shaft needs a thrust bearing
a tandem turbine coupled by flexible couplings
Axial thrust
crosshead
balancing pipe
37. Seperately forged discs or wheels and shrunk onto shaft
disc rotors
thrust adjsusting gear
intercoolers
surface condenser
38. 1. widely used 2. single stage 3. impulse turbine
'turbine'
mechanical drive turbine
newton's 2nd law
Axial thrust
39. Counter act force and load on thrust bearings
gantt chart
lube oil system basic functions
Above or at atmospheric pressure
dummy pistons
40. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)
centrifugal air compressor disadvantages
condenser safety devices
cross compound turbine
hunting
41. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87
moisture separator
R-22
methods to offset axial thrust
air leak tolerated in condenser up to...
42. Control a steady backpressure - sensing element in exhuast line
pressure sensitve governors
sprial valve
types of fired heaters
close cycle disadvantages
43. The change in sped that resutls from an increase in load
trunk type piston
double pipe hx
speed droop
liquid line aka
44. 1. plate 2. channel
refrigeration system charging
compressor valve types
shaft seals
biological removal of solids
45. Entire collection of all component
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46. No dissolved oxygen but does contain nitrates
anoxic
cross compound turbine
gas turbine advantages
unit
47. Chrome- iron alloy
Ammonia R-717
pressure sensitve governors
salometer
sealing strips made of...
48. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
rotary compressor types
single shaft combine cycle cogeneration
magneto ignition
centrifugal air compressors advantages
49. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
special aspects of reaction turbine
types of turbines
methods to detect cooling water leaks
reaction turbines use ____ bearings
50. 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
scavenging
air take 'pulse cleaing systems'
compressor displacement
turbocharge