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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. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily
intercoolers
suction line unloading valve advantages
govrenors classes
purpose of compressor lubrication
2. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
Ammonia R-717
adv of impulse turbine
centrifugal air compressor disadvantages
gas turbine disadvantages
3. Too small to settle out - add floc
oil system components
angstrom particles
gas turbine operating principles
ammonia compression cycle high side components
4. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs
lube oil system basic functions
thermocouple locations in fired heaters
close cycle disadvantages
non - condensing turbines used
5. Simple generator - light - no battery - hotter spark at higher speeds
plant thermal effificienies
ammonia compression cycle low side
magneto ignition
automatic extraction
6. Means to come together and form one mass - removes oil and water from air
Axial thrust
coalescing filters
magneto ignition
baffle pitch
7. Recuperative category - high pressure
unfired
double- flow in reaction turbines
Ammonia R-717
double pipe hx
8. Refers only to specificly to the turbine section
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183
9. 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
aero- derivative turbines
gas turbine advantages
gudgeon pins
pressure compounding
10. 1. convergent 2. convergent- divergent
speed droop
extraction pumps usually are _____ type
mechanical overspeed trip
nozzles types
11. 1. Split 2. double
4 stroke internal combustion
natural draft cooling tower
adv of impulse turbine
turbine casings
12. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87
balancing pipe
open cycle
ejector condenser
R-22
13. Sagging and hogging - 20-40rpm
barring gears prevent
primary cogeneration output
hairpin hx
jacking oil system
14. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices
types of reboilers
'bottoming cycle'
refrigerant evaporator
oil system components
15. Results in pressure drop and increased velocity
sentinel vales
steam expanding through stationary nozzles
air take 'pulse cleaing systems'
closed cycle advantages
16. KW at 15C standard at sealevel with 60% RH
regulation compressor systems
biological removal of solids
gas turbine efficiencies based on...
gas turbine blades should be replaced every
17. Controlled pressure from intermediate stages of turbine
impulse force
2 stroke internal combustion
turbocharge
extraction governor
18. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles
reaction turbines use ____ bearings
aerial coolers
air ejectors
centrifugal air compressor disadvantages
19. Air flow is horizontal
environmental management program
axial air compressors
crossflow
thermal load control
20. Air drawn from atmosphere - working fluid
single shaft combine cycle cogeneration
open cycle
govrenors classes
rotary compressor types
21. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
communication structure
unit
to reduce steam and blade velocities
project management
22. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function
reduce cavitation in extraction pumps
intercoolers
dual shaft combined cycle cogeneration
aerial coolers
23. Rows of stationart baldes with alternating rows of moving blades
reaction turbine components
compressor displacement
centrifugal air compressors advantages
axial compressors
24. Removal of exhaust gases by blow air through
moisture separator
servo motor
scavenging
suction line unloading valve advantages
25. On the exhaust side - drives the blower - being connected to the same shaft - increases power by 50-70% as more air is forced into the engine
water boxes
biological removal of solids
convergent nozzles
turbocharge
26. Polymers (polyelectrolytes)
base load
camshaft is the link between
cogeneration
coagulant aids
27. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
inlet air unloader advantages
mirco cogeneration advantages
regulation compressor systems
capacity
28. Quantity ofr compressed air and delivered air by the compressor
capacity
pressure sensitve governors
air ejectors
supercharge
29. 1. CCME 2. CEQG 3. CWQG 4. US EPA
government regualtions for waste water
reduce cavitation in extraction pumps
unit
air leaks in condensers
30. Large turbines couple together on a single shaft applied to one generator
avoid surging
R-22
crossflow
tandem compound turbines
31. Chrome- iron alloy
air ejectors
sealing strips made of...
types of reboilers
double- flow in reaction turbines
32. A thrust block that enables the axial position of the rotor to be controlled
thrust adjsusting gear
First stage of gas turbine nozzles made of...
anaerobic
gantt chart
33. 1. Flyweights 2. coutner spring 3. function based on centrifugal force
project management
mechanical governors
hairpin hx
mirco cogeneration advantages
34. More rounded than impulse blading
feature of impulse turbine
reaction blading
power oil
cogeneration
35. 1. high manufacturing costs 2. slow speed changes 3. low efficiencies at low throttle
gas turbine disadvantages
camshaft is the link between
diesel engines aka
tangs
36. Higher altitudes
higher compression ratios needed at...
sentinel vales
reduce cavitation in extraction pumps
aftercoolers
37. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)
coagulant aids
compressor valve types
environmental management program
condenser safety devices
38. Large turbines with a generator on each shaft
typical temperature for outlet on oil coolers
cross compound turbine
sealing strips made of...
lube oil system basic functions
39. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
mechanical overspeed trip
special aspects of reaction turbine
aero- derivative turbines
single flow turbines
40. 1. written 2. spoken 3. visual
plant thermal effificienies
jet condensers
inlet air unloader advantages
3 types of communication
41. Same principle as a turbine but acting in reverse
close cycle
axial compressors
purpose of a wet receiver
sentinel vales
42. Small clearances between discs on shaft to...
aerial coolers
Prevent thermal stresses
Axial thrust
refrigerant evaporator
43. Reduces steam pressure and velocity in two or more steps
government regualtions for waste water
thermal load control
difference between diesel and gas engines
pressure- velocity compounding
44. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
base load
jacking oil system
expansion valve
surface condenser
45. 1. individual pump system 2. distributor system 3. common rail system
automatic extraction
inlet cooling methods - evaporative
solid injection designs
impulse turbine disadvantage
46. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer
purpose of dry receiver
mechanical overspeed trip
purpose of compressor lubrication
selective catalytic reduction (SCR)
47. Servomotors
legal requirements of record keeping
power oil
air dryers
air leak tolerated in condenser up to...
48. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor
rotary compressor types
isochronous governing
nozzles types
surging
49. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm
bay
critical path method (CPM)
3 types of communication
selective catalytic reduction (SCR)
50. 1. Condensing 2. non - condensing (backpressure)
electronic overspeed trip
angstrom particles
types of turbines
inlet cooling methods - evaporative