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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. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
reduce cavitation in extraction pumps
air dryer types
oil free compressors
critical path method (CPM)
2. 1. to increase steam production 2. control superheater temperatures 3. meet process demands
double pipe hx
reaction blading
unfired
duct burners in HRSG
3. Non - condensing turbine exhaust steam at...
impulse buckets
scavenging
single shaft combine cycle cogeneration
Above or at atmospheric pressure
4. 75 -000 to 100 -00 hours of operation
4 stroke internal combustion
extraction pumps usually are _____ type
gas turbine blades should be replaced every
gas turbine components
5. Chrome- iron alloy
pressure drop across first row of reation turbine
dry low NOx combustion systems
nozzles types
sealing strips made of...
6. Too small to settle out - add floc
unit
angstrom particles
hairpin hx
condenser tube attachment methods
7. Centrifugal pumps
refrigerant groups
extraction pumps usually are _____ type
mechanical overspeed trip
4 stroke internal combustion
8. Overall master plan - comprehensive program
selective catalytic reduction (SCR)
crossflow
starters transmit power to front end of gas turbnine by...
gantt chart
9. 1. list of all equipment 2. PM checklist 3. fequency 4. repairs and costs 5. record keeping 6. cost management
centrifugal air compressor disadvantages
components of PM program
3 types of communication
gudgeon pins
10. Meters liquid from liquid line into evaporator at a rate equal at which vaporization of liquid is occuring
inlet cooling methods - evaporative
aero- derivative turbines
expansion valve
unit
11. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87
bay
R-22
reaction blading
purpose of a wet receiver
12. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature
staging
'topping cycle'
scavenging
double pipe hx
13. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
isochronous governing
cogeneration application areas
intercoolers
creep
14. KW at 15C standard at sealevel with 60% RH
sentinel vales
speed droop
gas turbine efficiencies based on...
project management
15. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
thrust adjsusting gear
mirco cogeneration advantages
selective catalytic reduction (SCR)
Above or at atmospheric pressure
16. The volum swept out by the piston - same through all stages
pressure compounding
solid injection designs
air dryers
compressor displacement
17. Air flow is horizontal
servo motor
crossflow
clean turbine blading with
marco cogeneration advantages
18. Results in pressure drop and increased velocity
types of gas turbines
non - condensables
clean turbine blading with
steam expanding through stationary nozzles
19. 1. intake 2. compression 3. power 4. exhaust
heat exchanger materials
pressure drop across first row of reation turbine
4 stroke internal combustion
centrifugal air compressor disadvantages
20. Simple generator - light - no battery - hotter spark at higher speeds
magneto ignition
pressure sensitve governors
gudgeon pins
mechanical governors
21. Has steam directed through baffles making 4 passes
adv of impulse turbine
downflow condenser
bank
3 types of communication
22. 1. increases net power 2. clean working fluid 3. cheap fuel can be used
closed cycle advantages
reaction turbine components
baffle pitch
inlet air unloader advantages
23. 1. lubricate sliding surfaces 2. cool bearings
3 types of gas turbine combustors
lube oil system basic functions
automatic extraction
crossflow
24. 1. brass 2. copper 3. cupronickel
heat exchanger materials
electronic overspeed trip
surging
R-134a
25. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%
gudgeon pins
cogeneration application areas
barring gears prevent
plant thermal effificienies
26. 1. sliding vane 2. rotary lobe 3. rotary screw ( convex male lobes - pulse free)
peak power
R-134a
a tandem turbine coupled by flexible couplings
rotary compressor types
27. Recuperative category - high pressure
BOD (biological oxygen demand)
components of PM program
air dryers
double pipe hx
28. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
Ammonia R-717
biological removal of solids
environmental management program
suction line unloading valve advantages
29. A group of one or more bays - including one or more units arranged in a single or continuous structure
bank
Pressure below atmospheric
pressure compounding
reaction blading
30. 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
condenser tube attachment methods
marco cogeneration advantages
critical pressure
aero- derivative turbines
31. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)
regulation compressor systems
anaerobic digesters
newton's 3rd law of motion
salometer
32. Cast with special nickel based alloys - Inconel - Udimet - Waspalloy - Hastelloy
fluid/air cooler
reaction blading
First stage of gas turbine nozzles made of...
aero- derivative turbines
33. 1. compressor section 2. combustor 3. turbine section
feature of impulse turbine
communication structure
gas turbine components
coagulant aids
34. Moving blades on a rotor
disc rotors
impulse buckets
liquid line aka
environmental management program
35. To remove and properly dispose of pollutants
waste water treatment purpose
double flow turbines
intercoolers
aerial coolers
36. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced
methods to offset axial thrust
biological removal of solids
sprial valve
creep
37. Use antifriction bearings
magneto ignition
aftercoolers
aero- derivative turbines
'topping cycle'
38. Cause high discharge pressures - more power requirements - reduces capacity
gas turbine components
R-134a
non - condensables
methods to detect cooling water leaks
39. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles
convergent nozzles
purpose of a wet receiver
air ejectors
Pressure below atmospheric
40. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
Axial thrust
government regualtions for waste water
3 speed sensitive governors
biological removal of solids
41. Seperately forged discs or wheels and shrunk onto shaft
compressor displacement
water boxes
counterflow
disc rotors
42. Nickel steel - strong fully balanced rotor - expensive
government regualtions for waste water
'gas turbine'
BOD (biological oxygen demand)
what large rotors are made of
43. 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)
inlet air unloader advantages
R-22
tandem compound turbines
44. The difference between the no- load and full- load speed - expressed as a %
centrifugal air compressors advantages
droop
waste water treatment plant components
inlet cooling methods - evaporative
45. Means to come together and form one mass - removes oil and water from air
coalescing filters
air ejectors
unfired
air take 'pulse cleaing systems'
46. Working fluid is compress then preheated in regenerator
droop
close cycle
salometer
air cooling advantages over water cooling
47. Controlled pressure from intermediate stages of turbine
shaft seals
impulse force
extraction governor
air dryers
48. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates
methods to detect cooling water leaks
types of refrigerant evaporators
gas turbine disadvantages
downflow condenser
49. Use of a rotary lobe air blower
aerobic
gas turbine operating principles
supercharge
impulse turbine disadvantage
50. More rounded than impulse blading
reaction blading
cogeneration reduces energy costs by...
open cycle
types of turbines