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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. Working fluid is compress then preheated in regenerator
creep
close cycle
Piezometer wells
suction line unloading valve advantages
2. To remove and properly dispose of pollutants
anaerobic digesters
ammonia compression cycle low side
diesel engines aka
waste water treatment purpose
3. The volum swept out by the piston - same through all stages
supercharge
compressor displacement
expansion valve
hunting
4. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
3 speed sensitive governors
single point fuel injection
condenser safety devices
compressor valve types
5. 1. CCME 2. CEQG 3. CWQG 4. US EPA
unit
cogeneration
inlet modulating valve advantages
government regualtions for waste water
6. 1. charge drawn into cylinder is air only 2. fuel injected at high pressures 3. ignition due to high compression temperatuers
critical path method (CPM)
moisture separator
difference between diesel and gas engines
single shaft combine cycle cogeneration
7. Controlled pressure from intermediate stages of turbine
difference between diesel and gas engines
extraction governor
downflow condenser
types of reciprocation compressors
8. The utilization of one form of input energy to generate two or more forms of output energy
bay
higher compression ratios needed at...
cogeneration
creep
9. Too small to settle out - add floc
angstrom particles
condenser safety devices
turbocharge
cogeneration application areas
10. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
saturated air
condenser types
cross compound turbine
jacking oil system
11. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based
waste water treatment purpose
single flow turbines
R-134a
starters transmit power to front end of gas turbnine by...
12. Meters liquid from liquid line into evaporator at a rate equal at which vaporization of liquid is occuring
difference between diesel and gas engines
expansion valve
regulation compressor systems
unit
13. Cause high discharge pressures - more power requirements - reduces capacity
combined cycle cogeneration
non - condensables
reaction turbines use ____ bearings
base load
14. 1. Flyweights 2. coutner spring 3. function based on centrifugal force
water/oil separator
Axial thrust
condenser tube attachment methods
mechanical governors
15. 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
axial compressors
single flow turbines
expansion valve
gas turbine advantages
16. No dissolved oxygen but does contain nitrates
surging
reaction turbine components
servo motor
anoxic
17. 1. lubricate sliding surfaces 2. cool bearings
3 speed sensitive governors
condenser tube sheets made of...
lube oil system basic functions
reaction turbine components
18. 1. compressor discharge 2. condenser 3. liquid receiver
coagulant aids
ammonia compression cycle high side components
downflow condenser
secondary cogeneration output
19. Up to 60-90%
air ejectors
cogeneration reduces energy costs by...
First stage of gas turbine nozzles made of...
gas turbine components
20. Air flow is upward
thermal load control
air dryer types
creep
counterflow
21. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8
gudgeon pins
unit
R-12
heat exchanger materials
22. 5mm in diameter
air leak tolerated in condenser up to...
types of fired heaters
creep
tangs
23. 1. collection system 2. seperation pond 3. flare pit 4. stabilization lagoon 5. wastewater heater 6. 1st stage aeration tank - activated sludge 7. 2nd stage aeration tank 8. clarifiers 9. polishing pond
waste water treatment plant components
duct burners in HRSG
refrigerant groups
air dryers
24. Forced or induced draft
environmental management program
air leak tolerated in condenser up to...
gas turbine blades should be replaced every
mechanical draft
25. Reduces steam pressure and velocity in two or more steps
lube oil system basic functions
pressure- velocity compounding
typical temperature for outlet on oil coolers
compression ratio
26. 1. large volumes of air 2. simple and rugged 3. low maintenance
oil free compressors
critical pressure
'topping cycle'
centrifugal air compressors advantages
27. drum rotors on reaction turbines eliminates...
ISO 9000 certified
'gas turbine'
Axial thrust
air ejectors
28. 1. thrust bearings 2. dummy pistions 3. thrust adjusting gear
power oil
aero- derivative turbines
First stage of gas turbine nozzles made of...
methods to offset axial thrust
29. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston
inlet modulating valve advantages
types of reciprocation compressors
extraction governor
BOD (biological oxygen demand)
30. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature
gantt chart
staging
camshaft is the link between
R-134a
31. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily
suction line unloading valve advantages
turbocharge
compression ratio
2 major factos affecting gas turbine efficiency and power
32. Admirally brass or Munte metal - 25-40mm thick
aero- derivative turbines
air take 'pulse cleaing systems'
condenser tube sheets made of...
jacking oil system
33. Use teflon or carbon to lubricate system
3 types of communication
marco cogeneration advantages
oil free compressors
refrigerant groups
34. 'huff and puff' methods
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35. Independant of the governor - inductive sensor (magnetic speed pickups)
single point fuel injection
project management
surface condenser
electronic overspeed trip
36. Made of cast iron and support by stay bolts to protect against a vacuum
mechanical drive turbine
water boxes
condenser tube sheets made of...
air ejectors
37. Use antifriction bearings
water/oil separator
double- flow in reaction turbines
jacking oil system
aero- derivative turbines
38. KW at 15C standard at sealevel with 60% RH
two stage refrigeration system
environmental management program
gas turbine efficiencies based on...
closed cycle advantages
39. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)
regulation compressor systems
steam expanding through stationary nozzles
sentinel vales
scavenging
40. 1. Condensing 2. non - condensing (backpressure)
baffle pitch
'bottoming cycle'
types of turbines
tandem compound turbines
41. Sagging and hogging - 20-40rpm
sealing strips made of...
barring gears prevent
speed droop
refrigerant groups
42. Straight condensing
rotary compressor control
impulse buckets
jet condensers
automatic extraction
43. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices
oil system components
convergent- divergent
gas turbine operating principles
refrigeration safety controls
44. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
velocity compounding
camshaft is the link between
isochronous governing
aerial coolers
45. 1. better than gantt chart 2. establishes feasible sequence 3. timetable 4. spare time plotted 5. critical activities 6. use of arrow diagrams 7. event (aka nodes) - a situation that occurs after a completed activity 8. schedule manpower efficiently
single shaft combine cycle cogeneration
water boxes
critical path method (CPM)
jet condensers
46. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference
components of PM program
diesel engines aka
hx principles
compressor valve types
47. Driving rotating equipment
non - condensables
primary cogeneration output
Prevent thermal stresses
mechanical governors
48. Change in direction causing a turbine to move
cogeneration
impulse force
bakpressure turbines
R-12
49. Control a steady backpressure - sensing element in exhuast line
close cycle disadvantages
pressure sensitve governors
double pipe hx
gantt chart
50. Calcium chloride and water - -51
brine
scavenging
waste water treatment purpose
Axial thrust