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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. Is the ratio of the discharge pressure to the intake pressure absolute
salometer
hairpin hx
compression ratio
components of PM program
2. Each shaft needs a thrust bearing
a tandem turbine coupled by flexible couplings
project management
double- flow in reaction turbines
'gas turbine'
3. Means to come together and form one mass - removes oil and water from air
coalescing filters
dummy pistons
turbocharge
oil system components
4. Monel metal - high tensile strength - nickel copper alloy
refrigerant groups
4 stroke internal combustion
gas turbine advantages
nozzels made of...
5. Seperately forged discs or wheels and shrunk onto shaft
ammonia compression cycle high side components
disc rotors
purpose of compressor lubrication
communication structure
6. Sagging and hogging - 20-40rpm
rotary compressor control
power oil
barring gears prevent
counterflow
7. Forced or induced draft
mechanical draft
impulse force
hx principles
pressure compounding
8. 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
types of refrigerant evaporators
creep
critical path method (CPM)
gas turbine advantages
9. 1. compressor discharge 2. condenser 3. liquid receiver
types of turbines
headworks
convergent- divergent
ammonia compression cycle high side components
10. Help maintain definite thrust toward exhaust
critical path method (CPM)
types of turbines
what large rotors are made of
balancing pipe
11. 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
anoxic
air ejectors
centrifugal air compressors advantages
waste water treatment plant components
12. King valve
liquid line aka
dynamic compressor control
Above or at atmospheric pressure
surface condenser
13. Driving rotating equipment
3 types of gas turbine combustors
ISO 9000 certified
impulse turbine disadvantage
primary cogeneration output
14. 1. charge drawn into cylinder is air only 2. fuel injected at high pressures 3. ignition due to high compression temperatuers
government regualtions for waste water
pressure drop across first row of reation turbine
difference between diesel and gas engines
R-22
15. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
largest hx in a plant is...
'turbine'
jacking oil system
avoid surging
16. Results in a gain in velocity - the moving blades change direction producing force
impulse turbine disadvantage
pressure drop across first row of reation turbine
hairpin hx
aftercoolers
17. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
cogeneration reduces energy costs by...
pressure compounding
'turbine'
reaction turbines use ____ bearings
18. Used for single acting compressors
supercharge
sealing strips made of...
trunk type piston
nozzels made of...
19. Countries with small grids or specail grid requirements - has a high efficiency at base loads
pressure drop across first row of reation turbine
starters transmit power to front end of gas turbnine by...
dual shaft combined cycle cogeneration
air cooling advantages over water cooling
20. Contains dissolved oxygen
mechanical governors
baffle pitch
open cycle
aerobic
21. Straight condensing
government regualtions for waste water
extraction governor
automatic extraction
isochronous governing
22. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs
difference between diesel and gas engines
sealing strips made of...
extraction governor
close cycle disadvantages
23. 1. Pressure compounding 2. velocity compounding 3. pressure- velocity compounding
salometer
single point fuel injection
to reduce steam and blade velocities
trunk type piston
24. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
cogeneration reduces energy costs by...
fluid/air cooler
purpose of compressor lubrication
condenser types
25. '3 ports' 1. intake and exhaust 2. compression and ignititon
methods to offset axial thrust
2 stroke internal combustion
sentinel vales
communication structure
26. Results in pressure drop and increased velocity
gas turbine efficiencies based on...
camshaft is the link between
steam expanding through stationary nozzles
air dryers
27. Polymers (polyelectrolytes)
nozzles types
3 speed sensitive governors
coagulant aids
refrigerant groups
28. Reduces steam pressure and velocity in two or more steps
pressure- velocity compounding
dual shaft combined cycle cogeneration
critical pressure
regulation compressor systems
29. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity
purpose of a wet receiver
reaction turbine
air dryers
impulse buckets
30. 1. use clean burning fuels 2. less fuel being used - saving energy reserves 3. electrical production onsite lowers construction demands for new sites and reduces transmission line power losses
non - condensables
intercoolers
turbocharge
marco cogeneration advantages
31. 1. evaporator coil
ammonia compression cycle high side components
typical temperature for outlet on oil coolers
critical path method (CPM)
ammonia compression cycle low side
32. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
surface condenser
balancing pipe
water/oil separator
communication structure
33. Made of polyethylene - skimming from the surface
water/oil separator
legal requirements of record keeping
air cooling advantages over water cooling
First stage of gas turbine nozzles made of...
34. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based
aerial coolers
dual shaft combined cycle cogeneration
condenser safety devices
R-134a
35. 'huff and puff' methods
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36. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function
jacking oil system
4 stroke internal combustion
intercoolers
First stage of gas turbine nozzles made of...
37. Contains 0.5kg of moisture for every 28 cubic meter of air
saturated air
sealing strips made of...
pressure compounding
water/oil separator
38. The difference between the no- load and full- load speed - expressed as a %
droop
intercoolers
air cooling advantages over water cooling
trunk type piston
39. Requires annual review of SOPs
automatic extraction
ISO 9000 certified
refrigerant groups
cogeneration reduces energy costs by...
40. Change in direction causing a turbine to move
close cycle
solid injection designs
air dryers
impulse force
41. Use teflon or carbon to lubricate system
oil free compressors
refrigeration system charging
'topping cycle'
3 types of gas turbine combustors
42. 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
feature of impulse turbine
turbocharge
reaction blading
communication structure
43. 1. Responsive to speed changes 2. responsive to pressurre changes
gas turbine components
surface condenser
govrenors classes
when impulse turbine pressure drops
44. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
dynamic compressor control
rotary compressor control
regulation compressor systems
jet condensers
45. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)
condenser safety devices
biological removal of solids
types of refrigerant evaporators
double flow turbines
46. Controlled pressure from intermediate stages of turbine
extraction governor
dynamic compressor control
ISO 9000 certified
anoxic
47. 1. to increase steam production 2. control superheater temperatures 3. meet process demands
condenser safety devices
duct burners in HRSG
govrenors classes
a tandem turbine coupled by flexible couplings
48. Type of hydrometer indicating % of salt in solution
critical pressure
magneto ignition
diesel engines aka
salometer
49. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
single shaft combine cycle cogeneration
R-134a
air take 'pulse cleaing systems'
critical path method (CPM)
50. 5mm in diameter
axial air compressors
air leak tolerated in condenser up to...
critical path method (CPM)
balancing pipe