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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. More rounded than impulse blading
purpose of dry receiver
salometer
reaction blading
shaft seals
2. Counter act force and load on thrust bearings
natural draft cooling tower
dummy pistons
feature of impulse turbine
regulation compressor systems
3. 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
impulse force
brine
refrigerant groups
waste water treatment plant components
4. 1. high manufacturing costs 2. slow speed changes 3. low efficiencies at low throttle
gas turbine disadvantages
scavenging
methods to offset axial thrust
govrenors classes
5. Has steam directed through baffles making 4 passes
downflow condenser
sentinel vales
mechanical draft
lube oil system basic functions
6. Small pressure drop
convergent nozzles
purpose of dry receiver
dynamic compressor control
govrenors classes
7. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters
inlet air unloader advantages
sentinel vales
centrifugal air compressor disadvantages
disc rotors
8. Wrist pins that connect pistons to rod - retained bu circlips
surging
rotary compressor types
gudgeon pins
avoid surging
9. Help maintain definite thrust toward exhaust
balancing pipe
servo motor
sprial valve
reaction turbine components
10. Cannot go below -18
sodium chloride
methods to offset axial thrust
project management
pressure drop across first row of reation turbine
11. At high temperatures a material stretches
staging
crossflow
creep
extraction governor
12. Defined as one or more tube bundle - served by two or more fans complete with aux equipment
hunting
typical temperature for outlet on oil coolers
gas turbine disadvantages
bay
13. Refers to the production of power during overload demands
downflow condenser
peak power
aerial coolers
expansion valve
14. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer
compressor displacement
purpose of dry receiver
regulation compressor systems
'topping cycle'
15. Moisture removed by centrifugal force
ISO 9000 certified
moisture separator
crosshead
special aspects of reaction turbine
16. '3 ports' 1. intake and exhaust 2. compression and ignititon
2 stroke internal combustion
extraction pumps usually are _____ type
coalescing filters
oil system components
17. 1. can - annular 2. annular 3. single- can
Axial thrust
3 types of gas turbine combustors
double pipe hx
moisture separator
18. Straight condensing
automatic extraction
crosshead
ammonia compression cycle low side
air leak tolerated in condenser up to...
19. Centrifugal pumps
staging
extraction pumps usually are _____ type
special aspects of reaction turbine
impulse turbine disadvantage
20. 1. lubricate sliding surfaces 2. cool bearings
non - condensing turbines used
govrenors classes
2 stroke internal combustion
lube oil system basic functions
21. 1. Aero- derivate 2. Heavy duty
types of gas turbines
hairpin hx
rotary compressor types
feature of impulse turbine
22. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices
3 types of gas turbine combustors
legal requirements of record keeping
convergent nozzles
refrigeration safety controls
23. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades
velocity compounding
ammonia compression cycle high side components
scavenging
non - condensing turbines used
24. The condenser
purpose of a wet receiver
axial compressors
largest hx in a plant is...
mechanical drive turbine
25. Cause high discharge pressures - more power requirements - reduces capacity
non - condensables
types of gas turbines
a tandem turbine coupled by flexible couplings
velocity compounding
26. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell
pressure- velocity compounding
Pressure below atmospheric
R-22
jet condensers
27. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm
surging
components of PM program
mirco cogeneration advantages
selective catalytic reduction (SCR)
28. Steam expands and pressure drops as it passes through moving blades - unbalance pressure
methods to detect cooling water leaks
condenser safety devices
starters transmit power to front end of gas turbnine by...
reaction turbine
29. Controlled pressure from intermediate stages of turbine
extraction governor
shaft seals
types of gas turbines
'bottoming cycle'
30. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
a tandem turbine coupled by flexible couplings
surface condenser
govrenors classes
to reduce steam and blade velocities
31. 1. CCME 2. CEQG 3. CWQG 4. US EPA
compression ratio
nozzles types
oil system components
government regualtions for waste water
32. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
gudgeon pins
natural draft cooling tower
inlet cooling methods - evaporative
purpose of compressor lubrication
33. Means to come together and form one mass - removes oil and water from air
difference between diesel and gas engines
clean turbine blading with
coalescing filters
duct burners in HRSG
34. Removal of exhaust gases by blow air through
water/oil separator
scavenging
liquid line aka
compression ratio
35. 1. intake 2. compression 3. power 4. exhaust
cross compound turbine
4 stroke internal combustion
disc rotors
gas turbine efficiencies based on...
36. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs
sentinel vales
centrifugal air compressor disadvantages
close cycle disadvantages
avoid surging
37. Results in pressure drop and increased velocity
steam expanding through stationary nozzles
a tandem turbine coupled by flexible couplings
angstrom particles
types of fired heaters
38. Nickel steel - strong fully balanced rotor - expensive
axial compressors
convergent nozzles
what large rotors are made of
ISO 9000 certified
39. Change in direction causing a turbine to move
dummy pistons
impulse force
barring gears prevent
purpose of a wet receiver
40. Type of hydrometer indicating % of salt in solution
salometer
suction line unloading valve advantages
headworks
pressure drop across first row of reation turbine
41. 1. compressor discharge 2. condenser 3. liquid receiver
liquid line aka
reduce cavitation in extraction pumps
ammonia compression cycle high side components
plant thermal effificienies
42. A thrust block that enables the axial position of the rotor to be controlled
two stage refrigeration system
primary cogeneration output
typical temperature for outlet on oil coolers
thrust adjsusting gear
43. Forced or induced draft
mechanical draft
R-12
dual shaft combined cycle cogeneration
cogeneration application areas
44. Made of steel - used for double acting pistons - acts as a piston rod
crosshead
First stage of gas turbine nozzles made of...
ISO 9000 certified
Piezometer wells
45. Reduces steam pressure and velocity in two or more steps
baffle pitch
pressure- velocity compounding
droop
dummy pistons
46. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
a tandem turbine coupled by flexible couplings
secondary cogeneration output
single shaft combine cycle cogeneration
thermal load control
47. zeolite molecular sieve desiccant
air dryers
duct burners in HRSG
newton's 2nd law
Pressure below atmospheric
48. Requires annual review of SOPs
ISO 9000 certified
Pressure below atmospheric
isochronous governing
compressor displacement
49. Non - condensing turbine exhaust steam at...
reaction turbine components
refrigeration safety controls
power oil
Above or at atmospheric pressure
50. 1. evaporator coil
automatic extraction
government regualtions for waste water
reduce cavitation in extraction pumps
ammonia compression cycle low side