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Test your basic knowledge |
Power Engineering 2
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Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. The volum swept out by the piston - same through all stages
hairpin hx
air take 'pulse cleaing systems'
compressor displacement
condenser safety devices
2. 1. verticle cyclinder 2. cabin heater 3. central tube wall
pressure compounding
types of fired heaters
types of turbines
impulse turbine disadvantage
3. Compression ignititon engines
diesel engines aka
eutectic solution
reduce cavitation in extraction pumps
air dryer types
4. The change in sped that resutls from an increase in load
speed droop
selective catalytic reduction (SCR)
turbocharge
higher compression ratios needed at...
5. Working fluid is compress then preheated in regenerator
waste water treatment plant components
capacity
electronic overspeed trip
close cycle
6. Have advantage of high efficiencies - 10% greater than centrifugal compressors
difference between diesel and gas engines
close cycle
Ammonia R-717
axial air compressors
7. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8
government regualtions for waste water
bakpressure turbines
R-12
avoid surging
8. Small pressure drop
aero- derivative turbines
thermal load control
air cooling advantages over water cooling
convergent nozzles
9. Pressure drops across the moving blades
methods to offset axial thrust
nozzels made of...
distinguishing reaction turbine
headworks
10. Direct prosses applications - absorption refrigeration - heat recovery boiler
tangs
secondary cogeneration output
diesel engines aka
gas turbine disadvantages
11. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer
jet condensers
purpose of dry receiver
isochronous governing
cogeneration application areas
12. Entire collection of all component
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13. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control
critical pressure
reaction blading
2 major factos affecting gas turbine efficiency and power
rotary compressor control
14. '3 ports' 1. intake and exhaust 2. compression and ignititon
non - condensables
inlet air unloader advantages
scavenging
2 stroke internal combustion
15. Is the ratio of the discharge pressure to the intake pressure absolute
compression ratio
tangs
trunk type piston
hairpin hx
16. Straight condensing
automatic extraction
nozzles types
regulation compressor systems
non - condensing turbines used
17. Admirally brass or Munte metal - 25-40mm thick
mirco cogeneration advantages
water boxes
axial air compressors
condenser tube sheets made of...
18. 43-49 degrees C
condenser tube attachment methods
water boxes
typical temperature for outlet on oil coolers
salometer
19. 1. oil reservoir 2. filters 3. pumps 4. coolers 5. protective monitoring devices
hunting
clean turbine blading with
to reduce steam and blade velocities
oil system components
20. 1. large volumes of air 2. simple and rugged 3. low maintenance
centrifugal air compressors advantages
counterflow
crossflow
primary cogeneration output
21. Countries with small grids or specail grid requirements - has a high efficiency at base loads
pressure compounding
purpose of a wet receiver
dual shaft combined cycle cogeneration
inlet cooling methods - evaporative
22. Calcium chloride and water - -51
single point fuel injection
impulse turbine disadvantage
axial compressors
brine
23. Discharge steam when excessive backpressure exists
sentinel vales
waste water treatment purpose
thrust adjsusting gear
higher compression ratios needed at...
24. Nickel steel - strong fully balanced rotor - expensive
mechanical overspeed trip
aerial coolers
what large rotors are made of
cogeneration
25. Chrome- iron alloy
regulation compressor systems
combined cycle cogeneration
fluid/air cooler
sealing strips made of...
26. Change in direction causing a turbine to move
methods to offset axial thrust
impulse force
shaft seals
turbine casings
27. Throttle body
single point fuel injection
cross compound turbine
diesel engines aka
jet condensers
28. Velocity increases as passes through nozzles
R-12
convergent nozzles
when impulse turbine pressure drops
Ammonia R-717
29. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
3 types of gas turbine combustors
government regualtions for waste water
3 speed sensitive governors
base load
30. A thrust block that enables the axial position of the rotor to be controlled
velocity compounding
angstrom particles
hairpin hx
thrust adjsusting gear
31. 1. activated sludge 2. rotating biological contactors 3. trickling filters
droop
aero- derivative turbines
biological removal of solids
shaft seals
32. Ground water monitoring device
servo motor
Piezometer wells
types of reboilers
reduce cavitation in extraction pumps
33. Overall master plan - comprehensive program
gantt chart
capacity
single flow turbines
gas turbine advantages
34. Higher power and speeds
sodium chloride
double flow turbines
impulse turbine disadvantage
velocity compounding
35. Cool compressed air before point of use
aftercoolers
water boxes
turbine casings
fluid/air cooler
36. 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
biological removal of solids
rotary compressor types
'turbine'
37. 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
gas turbine advantages
cogeneration
2 major factos affecting gas turbine efficiency and power
nozzles types
38. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor
compression ratio
surging
air dryer types
refrigerant evaporator
39. Hydraulic cylinder or pisston on a governor
axial air compressors
close cycle disadvantages
surging
servo motor
40. A verticle well is used to increase the NPSH - gives better performance and less cavitation
droop
cross compound turbine
reduce cavitation in extraction pumps
condenser types
41. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter
nozzels made of...
hairpin hx
BOD (biological oxygen demand)
3 speed sensitive governors
42. Eliminates thrust - steam admitted midway along casing
Prevent thermal stresses
droop
mechanical overspeed trip
double- flow in reaction turbines
43. Too small to settle out - add floc
gas turbine disadvantages
coalescing filters
anaerobic digesters
angstrom particles
44. 1. increases net power 2. clean working fluid 3. cheap fuel can be used
trunk type piston
special aspects of reaction turbine
closed cycle advantages
headworks
45. The condenser
inlet air unloader advantages
largest hx in a plant is...
centrifugal air compressors advantages
3 speed sensitive governors
46. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve
regulation compressor systems
nozzles types
reduce cavitation in extraction pumps
avoid surging
47. 0.577 times the inlet pressure
condenser tube attachment methods
mirco cogeneration advantages
largest hx in a plant is...
critical pressure
48. Direct contact type - uses converging nozzles and in moderate vacuum
types of gas turbines
ejector condenser
dry low NOx combustion systems
mechanical overspeed trip
49. A concentrated solution at its critical point
eutectic solution
droop
distinguishing reaction turbine
types of gas turbines
50. Most widely used - least amount of steam
waste water treatment plant components
single flow turbines
purpose of compressor lubrication
shaft seals
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