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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. Refers only to specificly to the turbine section
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2. 1. convergent 2. convergent- divergent
refrigerant groups
power oil
to reduce steam and blade velocities
nozzles types
3. 0.577 times the inlet pressure
a tandem turbine coupled by flexible couplings
pressure- velocity compounding
close cycle
critical pressure
4. A concentrated solution at its critical point
eutectic solution
3 speed sensitive governors
unfired
downflow condenser
5. Wrist pins that connect pistons to rod - retained bu circlips
gas turbine blades should be replaced every
surface condenser
gudgeon pins
mechanical draft
6. The volum swept out by the piston - same through all stages
types of refrigerant evaporators
'bottoming cycle'
compressor displacement
3 types of gas turbine combustors
7. 1. Condensing 2. non - condensing (backpressure)
project management
types of turbines
to reduce steam and blade velocities
aerobic
8. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control
types of gas turbines
thrust adjsusting gear
gas turbine efficiencies based on...
rotary compressor control
9. Fuel supplied firstg produces electrcial power with thermal energy as a by- product
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10. '3 ports' 1. intake and exhaust 2. compression and ignititon
surging
inlet modulating valve advantages
compressor displacement
2 stroke internal combustion
11. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
newton's 3rd law of motion
typical temperature for outlet on oil coolers
nozzels made of...
mirco cogeneration advantages
12. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function
ammonia compression cycle low side
components of PM program
aerobic
intercoolers
13. 43-49 degrees C
surging
typical temperature for outlet on oil coolers
gas turbine disadvantages
'gas turbine'
14. More rounded than impulse blading
types of turbines
gas turbine operating principles
speed droop
reaction blading
15. 1. activated sludge and primary sludge combined 2. heated to 37C 3. sits for 25 days 4. anaerobic bacteria breaks down organic contents 5. produces useable gases for waste heat
anaerobic digesters
inlet cooling methods - evaporative
communication structure
sealing strips made of...
16. Polymers (polyelectrolytes)
diesel engines aka
coagulant aids
difference between diesel and gas engines
dummy pistons
17. Velocity increases as passes through nozzles
air dryer types
when impulse turbine pressure drops
cogeneration application areas
'gas turbine'
18. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
to reduce steam and blade velocities
gas turbine blades should be replaced every
unfired
selective catalytic reduction (SCR)
19. Monel metal - high tensile strength - nickel copper alloy
automatic extraction
R-134a
nozzels made of...
reaction turbines use ____ bearings
20. 1. Flyweights 2. coutner spring 3. function based on centrifugal force
gas turbine components
mechanical governors
aerial coolers
thermal load control
21. Center- to- center distance between baffles
hairpin hx
ISO 9000 certified
baffle pitch
sentinel vales
22. The difference between the no- load and full- load speed - expressed as a %
crosshead
starters transmit power to front end of gas turbnine by...
scavenging
droop
23. 1. increases net power 2. clean working fluid 3. cheap fuel can be used
closed cycle advantages
non - condensing turbines used
purpose of compressor lubrication
surging
24. Servomotors
'turbine'
Ammonia R-717
'gas turbine'
power oil
25. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices
inlet modulating valve advantages
gas turbine operating principles
refrigeration safety controls
higher compression ratios needed at...
26. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records
servo motor
refrigerant groups
single shaft combine cycle cogeneration
legal requirements of record keeping
27. 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
balancing pipe
convergent- divergent
refrigerant groups
extraction pumps usually are _____ type
28. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
3 speed sensitive governors
starters transmit power to front end of gas turbnine by...
BOD (biological oxygen demand)
servo motor
29. Waste heat only
secondary cogeneration output
4 stroke internal combustion
unfired
cross compound turbine
30. 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
centrifugal air compressor disadvantages
single point fuel injection
air ejectors
gas turbine operating principles
31. Equal and opposite reation
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32. Unit produces electricity on an ongoing basis
base load
4 stroke internal combustion
nozzels made of...
R-22
33. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
special aspects of reaction turbine
headworks
counterflow
air leaks in condensers
34. 1. widely used 2. single stage 3. impulse turbine
anoxic
mechanical drive turbine
thrust adjsusting gear
regulation compressor systems
35. Overall master plan - comprehensive program
condenser tube sheets made of...
gantt chart
refrigerant evaporator
government regualtions for waste water
36. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)
regulation compressor systems
dual shaft combined cycle cogeneration
typical temperature for outlet on oil coolers
4 stroke internal combustion
37. Chrome- iron alloy
droop
sealing strips made of...
open cycle
Axial thrust
38. Meters liquid from liquid line into evaporator at a rate equal at which vaporization of liquid is occuring
expansion valve
Pressure below atmospheric
convergent- divergent
double flow turbines
39. An 'overrunning' clutch
speed droop
brine
starters transmit power to front end of gas turbnine by...
methods to offset axial thrust
40. Forced or induced draft
surface condenser
disc rotors
mechanical draft
primary cogeneration output
41. Cool compressed air before point of use
tangs
aftercoolers
nozzles types
scavenging
42. Used to satisfy process steam requirements
Ammonia R-717
primary cogeneration output
bakpressure turbines
reaction turbine components
43. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
scavenging
gas turbine operating principles
types of turbines
special aspects of reaction turbine
44. 1. Split 2. double
'bottoming cycle'
environmental management program
marco cogeneration advantages
turbine casings
45. 1. Aero- derivate 2. Heavy duty
ammonia compression cycle high side components
environmental management program
types of gas turbines
servo motor
46. The crankshaft and valve train
ammonia compression cycle high side components
duct burners in HRSG
camshaft is the link between
'turbine'
47. DLN - reduce NOx down to 9ppm but have an increased combustion area
dry low NOx combustion systems
pressure- velocity compounding
regulation compressor systems
steam expanding through stationary nozzles
48. Made of cast iron and support by stay bolts to protect against a vacuum
water boxes
aerobic
balancing pipe
refrigeration system charging
49. Hydraulic cylinder or pisston on a governor
anaerobic
axial compressors
aftercoolers
servo motor
50. 1. Responsive to speed changes 2. responsive to pressurre changes
steam expanding through stationary nozzles
govrenors classes
air leaks in condensers
sodium chloride