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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. Higher power and speeds
double flow turbines
compression ratio
baffle pitch
a tandem turbine coupled by flexible couplings
2. The condenser
gas turbine advantages
largest hx in a plant is...
2 stroke internal combustion
gas turbine efficiencies based on...
3. 1. activated sludge 2. rotating biological contactors 3. trickling filters
biological removal of solids
bay
pressure drop across first row of reation turbine
newton's 2nd law
4. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity
thermal load control
gas turbine advantages
magneto ignition
purpose of a wet receiver
5. Contains dissolved oxygen
gantt chart
centrifugal air compressor disadvantages
aerobic
surging
6. Increase pressure affecting performance of condenser but do not incresase temperature
air leaks in condensers
purpose of compressor lubrication
project management
oil system components
7. 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
refrigerant evaporator
base load
waste water treatment plant components
'bottoming cycle'
8. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
reaction blading
isochronous governing
hx principles
dynamic compressor control
9. Monel metal - high tensile strength - nickel copper alloy
types of refrigerant evaporators
gas turbine blades should be replaced every
gantt chart
nozzels made of...
10. The difference between the no- load and full- load speed - expressed as a %
servo motor
ammonia compression cycle high side components
centrifugal air compressor disadvantages
droop
11. 1. verticle cyclinder 2. cabin heater 3. central tube wall
types of fired heaters
mechanical drive turbine
double flow turbines
sprial valve
12. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
surface condenser
closed cycle advantages
staging
rotary compressor types
13. 1. Aero- derivate 2. Heavy duty
types of gas turbines
downflow condenser
compressor valve types
gas turbine components
14. Cannot go below -18
reaction blading
camshaft is the link between
sodium chloride
starters transmit power to front end of gas turbnine by...
15. 1. widely used 2. single stage 3. impulse turbine
mechanical drive turbine
unit
cogeneration application areas
starters transmit power to front end of gas turbnine by...
16. Removal of exhaust gases by blow air through
scavenging
impulse force
regulation compressor systems
axial air compressors
17. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
tangs
air dryer types
First stage of gas turbine nozzles made of...
impulse buckets
18. One or more tube bundles - in one or more bays for an individual service or process
unit
electronic overspeed trip
power oil
baffle pitch
19. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
purpose of compressor lubrication
legal requirements of record keeping
shaft seals
to reduce steam and blade velocities
20. Driving rotating equipment
primary cogeneration output
brine
refrigeration system charging
aftercoolers
21. Reduces steam pressure and velocity in two or more steps
'bottoming cycle'
pressure- velocity compounding
avoid surging
refrigeration system charging
22. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter
oil free compressors
BOD (biological oxygen demand)
balancing pipe
fluid/air cooler
23. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced
compressor valve types
servo motor
sprial valve
critical pressure
24. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve
mechanical draft
higher compression ratios needed at...
avoid surging
unfired
25. '3 ports' 1. intake and exhaust 2. compression and ignititon
natural draft cooling tower
turbocharge
2 stroke internal combustion
disc rotors
26. Small pressure drop
disc rotors
convergent- divergent
brine
convergent nozzles
27. Steam expands and pressure drops as it passes through moving blades - unbalance pressure
reaction turbine
rotary compressor control
jet condensers
automatic extraction
28. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87
impulse force
air leaks in condensers
R-22
types of reboilers
29. Each shaft needs a thrust bearing
critical pressure
magneto ignition
baffle pitch
a tandem turbine coupled by flexible couplings
30. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices
refrigeration safety controls
rotary compressor types
trunk type piston
electronic overspeed trip
31. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices
difference between diesel and gas engines
ammonia compression cycle high side components
oil system components
pressure sensitve governors
32. Cause high discharge pressures - more power requirements - reduces capacity
non - condensables
power oil
dummy pistons
condenser types
33. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
mirco cogeneration advantages
distinguishing reaction turbine
inlet air unloader advantages
refrigeration system charging
34. Air flow is upward
impulse buckets
gas turbine components
counterflow
2 stroke internal combustion
35. Wrist pins that connect pistons to rod - retained bu circlips
velocity compounding
gudgeon pins
oil free compressors
coagulant aids
36. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%
methods to detect cooling water leaks
plant thermal effificienies
trunk type piston
refrigeration system charging
37. The change in sped that resutls from an increase in load
speed droop
two stage refrigeration system
automatic extraction
Above or at atmospheric pressure
38. Grit chambers and screens for waster water system
BOD (biological oxygen demand)
types of turbines
reduce cavitation in extraction pumps
headworks
39. Use of a rotary lobe air blower
waste water treatment purpose
brine
supercharge
gantt chart
40. An 'overrunning' clutch
Above or at atmospheric pressure
starters transmit power to front end of gas turbnine by...
Piezometer wells
purpose of dry receiver
41. Most widely used - least amount of steam
reaction turbine components
impulse buckets
single flow turbines
jacking oil system
42. 'huff and puff' methods
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43. The space wherein the liquid refrigerant absorbs heat and boils
counterflow
purpose of dry receiver
natural draft cooling tower
refrigerant evaporator
44. Up to 60-90%
water/oil separator
cogeneration reduces energy costs by...
selective catalytic reduction (SCR)
aero- derivative turbines
45. 75 -000 to 100 -00 hours of operation
gas turbine blades should be replaced every
anaerobic digesters
closed cycle advantages
expansion valve
46. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled
condenser tube attachment methods
regulation compressor systems
inlet cooling methods - evaporative
difference between diesel and gas engines
47. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
turbine casings
surging
power oil
tangs
48. 1. charge drawn into cylinder is air only 2. fuel injected at high pressures 3. ignition due to high compression temperatuers
rotary compressor types
extraction governor
camshaft is the link between
difference between diesel and gas engines
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
marco cogeneration advantages
2 major factos affecting gas turbine efficiency and power
centrifugal air compressors advantages
R-12
50. Change in direction causing a turbine to move
impulse buckets
velocity compounding
impulse force
crossflow