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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. Made of cast iron and support by stay bolts to protect against a vacuum
cogeneration reduces energy costs by...
water boxes
largest hx in a plant is...
newton's 3rd law of motion
2. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control
largest hx in a plant is...
downflow condenser
rotary compressor control
anaerobic
3. Up to 60-90%
inlet air unloader advantages
dynamic compressor control
cogeneration reduces energy costs by...
ejector condenser
4. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
types of reciprocation compressors
reaction turbines use ____ bearings
R-134a
thrust adjsusting gear
5. Simple generator - light - no battery - hotter spark at higher speeds
rotary compressor control
liquid line aka
mechanical drive turbine
magneto ignition
6. Used for single acting compressors
trunk type piston
critical path method (CPM)
waste water treatment plant components
turbocharge
7. Non - condensing turbine exhaust steam at...
eutectic solution
environmental management program
legal requirements of record keeping
Above or at atmospheric pressure
8. Each stage seperated by partitions - nozzles set into diaphragms
pressure- velocity compounding
coagulant aids
a tandem turbine coupled by flexible couplings
pressure compounding
9. 1. verticle cyclinder 2. cabin heater 3. central tube wall
difference between diesel and gas engines
aero- derivative turbines
types of fired heaters
speed droop
10. Large turbines with a generator on each shaft
fluid/air cooler
saturated air
cross compound turbine
dry low NOx combustion systems
11. Removal of exhaust gases by blow air through
electronic overspeed trip
rotary compressor control
scavenging
refrigerant groups
12. No dissolved oxygen but does contain nitrates
cogeneration application areas
anoxic
selective catalytic reduction (SCR)
purpose of compressor lubrication
13. Discharge steam when excessive backpressure exists
servo motor
reduce cavitation in extraction pumps
duct burners in HRSG
sentinel vales
14. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
higher compression ratios needed at...
water boxes
difference between diesel and gas engines
3 speed sensitive governors
15. The difference between the no- load and full- load speed - expressed as a %
govrenors classes
downflow condenser
cross compound turbine
droop
16. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
critical path method (CPM)
tandem compound turbines
govrenors classes
special aspects of reaction turbine
17. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles
air ejectors
moisture separator
air dryer types
Prevent thermal stresses
18. 1. activated sludge and primary sludge combined 2. heated to 37C 3. sits for 25 days 4. anaerobic bacteria breaks down organic contents 5. produces useable gases for waste heat
close cycle disadvantages
anaerobic digesters
pressure- velocity compounding
aerial coolers
19. 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
critical path method (CPM)
turbocharge
aftercoolers
sealing strips made of...
20. Change in momentum
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21. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records
single shaft combine cycle cogeneration
legal requirements of record keeping
intercoolers
downflow condenser
22. Most widely used - least amount of steam
jet condensers
single flow turbines
base load
mechanical overspeed trip
23. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method
creep
clean turbine blading with
gas turbine components
staging
24. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)
natural draft cooling tower
coagulant aids
condenser tube attachment methods
regulation compressor systems
25. 1. plate 2. channel
compressor valve types
refrigeration safety controls
trunk type piston
4 stroke internal combustion
26. 1. sliding vane 2. rotary lobe 3. rotary screw ( convex male lobes - pulse free)
rotary compressor types
sealing strips made of...
water/oil separator
combined cycle cogeneration
27. Small clearances between discs on shaft to...
3 speed sensitive governors
Prevent thermal stresses
disc rotors
gas turbine disadvantages
28. Air flow is upward
supercharge
3 types of communication
counterflow
convergent- divergent
29. Recuperative category - high pressure
First stage of gas turbine nozzles made of...
tangs
salometer
double pipe hx
30. Cannot go below -18
air dryers
largest hx in a plant is...
sodium chloride
non - condensing turbines used
31. Forced or induced draft
mechanical draft
oil free compressors
oil system components
anaerobic digesters
32. 43-49 degrees C
thrust adjsusting gear
typical temperature for outlet on oil coolers
trunk type piston
4 stroke internal combustion
33. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs
newton's 3rd law of motion
air take 'pulse cleaing systems'
close cycle disadvantages
critical path method (CPM)
34. Rows of stationart baldes with alternating rows of moving blades
Piezometer wells
turbocharge
reaction turbine components
non - condensing turbines used
35. Polymers (polyelectrolytes)
open cycle
starters transmit power to front end of gas turbnine by...
base load
coagulant aids
36. Type of hydrometer indicating % of salt in solution
surging
sodium chloride
salometer
moisture separator
37. 1. contact - 'jet' 2. surface
condenser types
refrigeration system charging
eutectic solution
inlet air unloader advantages
38. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
magneto ignition
R-12
refrigeration safety controls
dynamic compressor control
39. Direct contact type - uses converging nozzles and in moderate vacuum
dual shaft combined cycle cogeneration
ejector condenser
trunk type piston
primary cogeneration output
40. Contains 0.5kg of moisture for every 28 cubic meter of air
unit
saturated air
crosshead
marco cogeneration advantages
41. The change in sped that resutls from an increase in load
tangs
speed droop
extraction pumps usually are _____ type
single shaft combine cycle cogeneration
42. Increase pressure affecting performance of condenser but do not incresase temperature
reaction turbine
fluid/air cooler
air leaks in condensers
starters transmit power to front end of gas turbnine by...
43. To remove and properly dispose of pollutants
solid injection designs
waste water treatment purpose
scavenging
BOD (biological oxygen demand)
44. Pressure does not drop across the moving blades
counterflow
feature of impulse turbine
refrigeration system charging
single shaft combine cycle cogeneration
45. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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46. 1. spray 2. fog 3. special evaporator pads
cross compound turbine
inlet cooling methods - evaporative
headworks
First stage of gas turbine nozzles made of...
47. Straight condensing
waste water treatment purpose
automatic extraction
compression ratio
special aspects of reaction turbine
48. Centrifugal pumps
inlet air unloader advantages
axial air compressors
extraction pumps usually are _____ type
regulation compressor systems
49. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
tangs
gas turbine operating principles
oil system components
critical path method (CPM)
50. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based
mechanical drive turbine
extraction governor
single point fuel injection
R-134a