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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. Wrist pins that connect pistons to rod - retained bu circlips
gudgeon pins
aerobic
tandem compound turbines
nozzels made of...
2. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
aerial coolers
anaerobic digesters
reaction turbines use ____ bearings
refrigeration system charging
3. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
non - condensables
to reduce steam and blade velocities
magneto ignition
4 stroke internal combustion
4. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs
baffle pitch
salometer
mechanical drive turbine
close cycle disadvantages
5. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
downflow condenser
headworks
largest hx in a plant is...
mirco cogeneration advantages
6. Use antifriction bearings
ammonia compression cycle high side components
reaction turbine components
inlet cooling methods - evaporative
aero- derivative turbines
7. The difference between the no- load and full- load speed - expressed as a %
feature of impulse turbine
isochronous governing
droop
compressor displacement
8. 1. electricial purity 2. silver nitrate - milky white
starters transmit power to front end of gas turbnine by...
nozzels made of...
methods to detect cooling water leaks
air leak tolerated in condenser up to...
9. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm
aerial coolers
distinguishing reaction turbine
selective catalytic reduction (SCR)
dynamic compressor control
10. Cool compressed air before point of use
aftercoolers
pressure- velocity compounding
fluid/air cooler
aerobic
11. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates
fluid/air cooler
salometer
closed cycle advantages
types of refrigerant evaporators
12. 1. Condensing 2. non - condensing (backpressure)
liquid line aka
compressor valve types
types of turbines
Pressure below atmospheric
13. Small clearances between discs on shaft to...
Prevent thermal stresses
compressor valve types
turbocharge
air take 'pulse cleaing systems'
14. 1. evaporator coil
oil system components
First stage of gas turbine nozzles made of...
ammonia compression cycle low side
mechanical draft
15. Equal and opposite reation
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16. Type of hydrometer indicating % of salt in solution
eutectic solution
velocity compounding
salometer
thermal load control
17. Condensing turbines exhaust steam at...
air ejectors
Pressure below atmospheric
plant thermal effificienies
axial compressors
18. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface
closed cycle advantages
thermal load control
types of reciprocation compressors
hairpin hx
19. 0.577 times the inlet pressure
close cycle
jacking oil system
critical pressure
baffle pitch
20. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87
compressor valve types
feature of impulse turbine
R-22
convergent nozzles
21. Hydraulic cylinder or pisston on a governor
critical pressure
servo motor
pressure compounding
mechanical governors
22. zeolite molecular sieve desiccant
dummy pistons
speed droop
3 types of communication
air dryers
23. Air flow is upward
counterflow
water boxes
methods to detect cooling water leaks
droop
24. A concentrated solution at its critical point
dynamic compressor control
eutectic solution
air leaks in condensers
hairpin hx
25. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
3 speed sensitive governors
automatic extraction
waste water treatment plant components
gas turbine components
26. Driving rotating equipment
peak power
primary cogeneration output
droop
marco cogeneration advantages
27. Monel metal - high tensile strength - nickel copper alloy
refrigeration safety controls
impulse buckets
nozzels made of...
communication structure
28. Has steam directed through baffles making 4 passes
tandem compound turbines
'topping cycle'
downflow condenser
types of fired heaters
29. 1. high power to weight ration 2. use of different liquids and gaseous fuels 3. start rapidly 4. simple and compact design 5. reliable 6. remote operation
natural draft cooling tower
clean turbine blading with
gas turbine operating principles
gas turbine advantages
30. Forced or induced draft
difference between diesel and gas engines
mechanical draft
surging
waste water treatment plant components
31. Discharge steam when excessive backpressure exists
sentinel vales
biological removal of solids
double pipe hx
gudgeon pins
32. Very high speed with extremely high centrigufal force and high frictional losses
impulse turbine disadvantage
air take 'pulse cleaing systems'
tangs
'gas turbine'
33. Refers to the production of electricity form two sources utilizing one fuel source
methods to offset axial thrust
combined cycle cogeneration
selective catalytic reduction (SCR)
nozzels made of...
34. Waste heat only
government regualtions for waste water
unfired
cross compound turbine
critical path method (CPM)
35. '3 ports' 1. intake and exhaust 2. compression and ignititon
2 stroke internal combustion
brine
condenser tube sheets made of...
extraction pumps usually are _____ type
36. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference
base load
surging
hx principles
R-22
37. Calcium chloride and water - -51
methods to offset axial thrust
newton's 2nd law
brine
power oil
38. DLN - reduce NOx down to 9ppm but have an increased combustion area
gas turbine advantages
dry low NOx combustion systems
diesel engines aka
hunting
39. Cause high discharge pressures - more power requirements - reduces capacity
close cycle disadvantages
non - condensables
inlet cooling methods - evaporative
impulse force
40. 1. compressor discharge 2. condenser 3. liquid receiver
anaerobic
ammonia compression cycle high side components
unfired
double- flow in reaction turbines
41. Requires annual review of SOPs
'gas turbine'
double flow turbines
compression ratio
ISO 9000 certified
42. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
types of refrigerant evaporators
open cycle
special aspects of reaction turbine
sodium chloride
43. Eliminates thrust - steam admitted midway along casing
double- flow in reaction turbines
compressor displacement
government regualtions for waste water
power oil
44. 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
magneto ignition
close cycle
power oil
gas turbine operating principles
45. 1. can - annular 2. annular 3. single- can
centrifugal air compressors advantages
automatic extraction
3 types of gas turbine combustors
air ejectors
46. Servomotors
turbine casings
power oil
gudgeon pins
eutectic solution
47. drum rotors on reaction turbines eliminates...
2 stroke internal combustion
single point fuel injection
condenser safety devices
Axial thrust
48. 1. planning 2. implementation 3. review
project management
inlet air unloader advantages
gantt chart
hx principles
49. 1. convergent 2. convergent- divergent
nozzles types
largest hx in a plant is...
single flow turbines
R-12
50. Dry surface coolers - no contact convection hx - aka finned tube exchangers
aerial coolers
2 major factos affecting gas turbine efficiency and power
clean turbine blading with
surging