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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. electricial purity 2. silver nitrate - milky white
methods to detect cooling water leaks
base load
newton's 2nd law
waste water treatment purpose
2. Cause high discharge pressures - more power requirements - reduces capacity
tangs
non - condensables
axial compressors
biological removal of solids
3. Discharge steam when excessive backpressure exists
lube oil system basic functions
combined cycle cogeneration
sentinel vales
'bottoming cycle'
4. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve
avoid surging
inlet modulating valve advantages
single flow turbines
barring gears prevent
5. 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
headworks
to reduce steam and blade velocities
waste water treatment plant components
non - condensing turbines used
6. More rounded than impulse blading
trunk type piston
reaction blading
hunting
dry low NOx combustion systems
7. 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
air dryers
ammonia compression cycle low side
double- flow in reaction turbines
turbocharge
8. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records
aftercoolers
BOD (biological oxygen demand)
legal requirements of record keeping
steam expanding through stationary nozzles
9. Atmospheric or hyperbolic
natural draft cooling tower
R-22
jacking oil system
R-134a
10. Change in momentum
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11. Entire collection of all component
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12. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices
compressor displacement
refrigeration safety controls
bank
isochronous governing
13. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell
counterflow
'gas turbine'
reduce cavitation in extraction pumps
jet condensers
14. 1. single acting 2. double acting 3. two stage 4. tandem (first stage double acting - 2nd single) 5. free piston
close cycle disadvantages
condenser safety devices
types of reciprocation compressors
mechanical draft
15. Each stage seperated by partitions - nozzles set into diaphragms
marco cogeneration advantages
pressure compounding
isochronous governing
ejector condenser
16. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled
purpose of compressor lubrication
power oil
plant thermal effificienies
condenser tube attachment methods
17. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm
aero- derivative turbines
2 major factos affecting gas turbine efficiency and power
selective catalytic reduction (SCR)
oil free compressors
18. Small clearances between discs on shaft to...
3 types of communication
combined cycle cogeneration
Prevent thermal stresses
typical temperature for outlet on oil coolers
19. Polymers (polyelectrolytes)
selective catalytic reduction (SCR)
coagulant aids
compression ratio
droop
20. 1. widely used 2. single stage 3. impulse turbine
nozzles types
mechanical drive turbine
aftercoolers
single shaft combine cycle cogeneration
21. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases
refrigeration safety controls
gantt chart
convergent- divergent
methods to offset axial thrust
22. Controlled pressure from intermediate stages of turbine
types of refrigerant evaporators
extraction governor
turbine casings
automatic extraction
23. Same principle as a turbine but acting in reverse
First stage of gas turbine nozzles made of...
creep
inlet cooling methods - evaporative
axial compressors
24. Have advantage of high efficiencies - 10% greater than centrifugal compressors
axial air compressors
'topping cycle'
condenser tube sheets made of...
speed droop
25. Higher altitudes
higher compression ratios needed at...
pressure drop across first row of reation turbine
what large rotors are made of
water boxes
26. Used to satisfy process steam requirements
steam expanding through stationary nozzles
bakpressure turbines
a tandem turbine coupled by flexible couplings
expansion valve
27. 1. brass 2. copper 3. cupronickel
coalescing filters
heat exchanger materials
turbine casings
biological removal of solids
28. Moving blades on a rotor
droop
impulse buckets
'gas turbine'
crossflow
29. 1. thrust bearings 2. dummy pistions 3. thrust adjusting gear
brine
types of turbines
methods to offset axial thrust
reaction turbines use ____ bearings
30. 1. lubricate sliding surfaces 2. cool bearings
sealing strips made of...
lube oil system basic functions
compression ratio
communication structure
31. 1. control range of 0 to 100% load 2. energy efficient
surging
thermal load control
to reduce steam and blade velocities
inlet modulating valve advantages
32. 1. individual pump system 2. distributor system 3. common rail system
isochronous governing
types of reboilers
gas turbine blades should be replaced every
solid injection designs
33. Working fluid is compress then preheated in regenerator
salometer
centrifugal air compressor disadvantages
close cycle
air take 'pulse cleaing systems'
34. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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35. Air flow is upward
gas turbine components
pressure drop across first row of reation turbine
air leak tolerated in condenser up to...
counterflow
36. Large turbines couple together on a single shaft applied to one generator
bay
tandem compound turbines
condenser safety devices
ISO 9000 certified
37. Contains 0.5kg of moisture for every 28 cubic meter of air
clean turbine blading with
saturated air
anoxic
gudgeon pins
38. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method
nozzels made of...
'topping cycle'
clean turbine blading with
4 stroke internal combustion
39. Condensing turbines exhaust steam at...
critical pressure
Pressure below atmospheric
centrifugal air compressors advantages
types of reciprocation compressors
40. At high temperatures a material stretches
aerobic
creep
velocity compounding
air cooling advantages over water cooling
41. A verticle well is used to increase the NPSH - gives better performance and less cavitation
purpose of dry receiver
fluid/air cooler
velocity compounding
reduce cavitation in extraction pumps
42. Driving rotating equipment
condenser tube sheets made of...
inlet cooling methods - evaporative
primary cogeneration output
closed cycle advantages
43. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
isochronous governing
rotary compressor types
ammonia compression cycle low side
sodium chloride
44. Servomotors
sentinel vales
impulse buckets
power oil
inlet cooling methods - evaporative
45. 1. Condensing 2. non - condensing (backpressure)
air dryer types
types of turbines
dry low NOx combustion systems
centrifugal air compressor disadvantages
46. One or more tube bundles - in one or more bays for an individual service or process
air leak tolerated in condenser up to...
unit
double- flow in reaction turbines
liquid line aka
47. Means to come together and form one mass - removes oil and water from air
oil free compressors
Axial thrust
coalescing filters
reaction turbines use ____ bearings
48. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
peak power
turbine casings
Ammonia R-717
types of fired heaters
49. 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
turbocharge
refrigerant groups
adv of impulse turbine
types of turbines
50. Centrifugal pumps
Above or at atmospheric pressure
extraction pumps usually are _____ type
special aspects of reaction turbine
sentinel vales