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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. Attempting to pick up a load - turbines in parallel
2 major factos affecting gas turbine efficiency and power
camshaft is the link between
hunting
cogeneration application areas
2. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve
ISO 9000 certified
barring gears prevent
solid injection designs
avoid surging
3. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter
BOD (biological oxygen demand)
isochronous governing
secondary cogeneration output
dry low NOx combustion systems
4. An 'overrunning' clutch
project management
oil free compressors
single shaft combine cycle cogeneration
starters transmit power to front end of gas turbnine by...
5. 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
marco cogeneration advantages
double pipe hx
special aspects of reaction turbine
anaerobic digesters
6. Velocity increases as passes through nozzles
'gas turbine'
when impulse turbine pressure drops
condenser types
close cycle
7. Independant of the governor - inductive sensor (magnetic speed pickups)
extraction pumps usually are _____ type
liquid line aka
electronic overspeed trip
gas turbine disadvantages
8. 1. Carbon ring 2. labyrinth seal 3. water seal
types of turbines
fluid/air cooler
liquid line aka
shaft seals
9. Refers only to specificly to the turbine section
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10. Large turbines couple together on a single shaft applied to one generator
gas turbine blades should be replaced every
refrigeration system charging
double flow turbines
tandem compound turbines
11. 1. Aero- derivate 2. Heavy duty
mirco cogeneration advantages
types of gas turbines
magneto ignition
gantt chart
12. Steam expands and pressure drops as it passes through moving blades - unbalance pressure
thrust adjsusting gear
reaction turbine
special aspects of reaction turbine
purpose of compressor lubrication
13. zeolite molecular sieve desiccant
reduce cavitation in extraction pumps
feature of impulse turbine
axial air compressors
air dryers
14. Dry surface coolers - no contact convection hx - aka finned tube exchangers
lube oil system basic functions
intercoolers
solid injection designs
aerial coolers
15. 1. planning 2. implementation 3. review
double flow turbines
heat exchanger materials
double pipe hx
project management
16. 1. control range of 0 to 100% load 2. energy efficient
newton's 3rd law of motion
steam expanding through stationary nozzles
inlet modulating valve advantages
crossflow
17. Reduces steam pressure and velocity in two or more steps
duct burners in HRSG
pressure- velocity compounding
headworks
impulse buckets
18. 1. Flyweights 2. coutner spring 3. function based on centrifugal force
jet condensers
mechanical governors
creep
R-22
19. Higher altitudes
centrifugal air compressor disadvantages
compressor valve types
higher compression ratios needed at...
types of turbines
20. A verticle well is used to increase the NPSH - gives better performance and less cavitation
aerobic
reduce cavitation in extraction pumps
staging
types of refrigerant evaporators
21. A group of one or more bays - including one or more units arranged in a single or continuous structure
anoxic
environmental management program
waste water treatment purpose
bank
22. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston
air dryer types
extraction pumps usually are _____ type
anaerobic
types of reciprocation compressors
23. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
aerobic
rotary compressor control
surface condenser
supercharge
24. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)
condenser safety devices
types of turbines
turbine casings
condenser tube attachment methods
25. Seperately forged discs or wheels and shrunk onto shaft
3 types of gas turbine combustors
disc rotors
aerobic
capacity
26. Calcium chloride and water - -51
brine
jacking oil system
gas turbine disadvantages
camshaft is the link between
27. '3 ports' 1. intake and exhaust 2. compression and ignititon
cross compound turbine
2 stroke internal combustion
govrenors classes
mechanical governors
28. 1. verticle cyclinder 2. cabin heater 3. central tube wall
First stage of gas turbine nozzles made of...
types of fired heaters
gas turbine components
gas turbine efficiencies based on...
29. Help maintain definite thrust toward exhaust
difference between diesel and gas engines
water boxes
balancing pipe
nozzles types
30. Counter act force and load on thrust bearings
pressure compounding
oil free compressors
impulse force
dummy pistons
31. The crankshaft and valve train
3 types of communication
what large rotors are made of
aero- derivative turbines
camshaft is the link between
32. 1. can - annular 2. annular 3. single- can
heat exchanger materials
thermocouple locations in fired heaters
3 types of gas turbine combustors
moisture separator
33. Moving blades on a rotor
impulse buckets
open cycle
angstrom particles
oil free compressors
34. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records
sodium chloride
types of refrigerant evaporators
legal requirements of record keeping
difference between diesel and gas engines
35. Use of a rotary lobe air blower
supercharge
non - condensing turbines used
types of gas turbines
sprial valve
36. 1. intake 2. compression 3. power 4. exhaust
ammonia compression cycle high side components
4 stroke internal combustion
velocity compounding
purpose of a wet receiver
37. 1. charge drawn into cylinder is air only 2. fuel injected at high pressures 3. ignition due to high compression temperatuers
thrust adjsusting gear
isochronous governing
difference between diesel and gas engines
environmental management program
38. To remove and properly dispose of pollutants
angstrom particles
electronic overspeed trip
waste water treatment purpose
inlet air unloader advantages
39. Small pressure drop
communication structure
isochronous governing
pressure compounding
convergent nozzles
40. Does not contain dissolved oxygen
oil free compressors
anaerobic
rotary compressor types
a tandem turbine coupled by flexible couplings
41. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
sentinel vales
air leak tolerated in condenser up to...
purpose of compressor lubrication
angstrom particles
42. At high temperatures a material stretches
lube oil system basic functions
ISO 9000 certified
First stage of gas turbine nozzles made of...
creep
43. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades
creep
velocity compounding
what large rotors are made of
newton's 3rd law of motion
44. Working fluid is compress then preheated in regenerator
automatic extraction
closed cycle advantages
ammonia compression cycle low side
close cycle
45. Direct prosses applications - absorption refrigeration - heat recovery boiler
secondary cogeneration output
Axial thrust
surface condenser
water boxes
46. Simple generator - light - no battery - hotter spark at higher speeds
salometer
close cycle disadvantages
Prevent thermal stresses
magneto ignition
47. 1. increases net power 2. clean working fluid 3. cheap fuel can be used
closed cycle advantages
angstrom particles
adv of impulse turbine
'gas turbine'
48. 1. simple design 2. less piping 3. no freezing hazard
sodium chloride
air cooling advantages over water cooling
centrifugal air compressor disadvantages
intercoolers
49. DLN - reduce NOx down to 9ppm but have an increased combustion area
dry low NOx combustion systems
dual shaft combined cycle cogeneration
gas turbine efficiencies based on...
jet condensers
50. 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
when impulse turbine pressure drops
'turbine'
trunk type piston
gas turbine operating principles