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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. Direct contact type - uses converging nozzles and in moderate vacuum
difference between diesel and gas engines
balancing pipe
ejector condenser
duct burners in HRSG
2. 1. contact - 'jet' 2. surface
condenser tube attachment methods
air ejectors
purpose of a wet receiver
condenser types
3. Higher power and speeds
gas turbine efficiencies based on...
counterflow
double flow turbines
gas turbine advantages
4. Has steam directed through baffles making 4 passes
non - condensing turbines used
downflow condenser
dual shaft combined cycle cogeneration
compressor displacement
5. 43-49 degrees C
typical temperature for outlet on oil coolers
compressor displacement
2 major factos affecting gas turbine efficiency and power
nozzles types
6. Control a steady backpressure - sensing element in exhuast line
axial air compressors
purpose of a wet receiver
reaction turbine components
pressure sensitve governors
7. Velocity increases as passes through nozzles
anaerobic
natural draft cooling tower
automatic extraction
when impulse turbine pressure drops
8. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
barring gears prevent
tangs
thrust adjsusting gear
Prevent thermal stresses
9. Used for single acting compressors
unit
bakpressure turbines
two stage refrigeration system
trunk type piston
10. An 'overrunning' clutch
starters transmit power to front end of gas turbnine by...
types of fired heaters
eutectic solution
peak power
11. 1. compressor discharge 2. condenser 3. liquid receiver
ammonia compression cycle high side components
condenser tube attachment methods
duct burners in HRSG
coagulant aids
12. Overall master plan - comprehensive program
types of reboilers
dynamic compressor control
unit
gantt chart
13. DLN - reduce NOx down to 9ppm but have an increased combustion area
combined cycle cogeneration
dry low NOx combustion systems
impulse buckets
thrust adjsusting gear
14. 1. individual pump system 2. distributor system 3. common rail system
2 stroke internal combustion
solid injection designs
lube oil system basic functions
convergent nozzles
15. Simple generator - light - no battery - hotter spark at higher speeds
rotary compressor types
electronic overspeed trip
surging
magneto ignition
16. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface
R-134a
compressor valve types
hairpin hx
sodium chloride
17. HCFC group - miscible in oil - boiling point of -40.8 but can be used down to -87
R-22
nozzels made of...
eutectic solution
distinguishing reaction turbine
18. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor
inlet modulating valve advantages
magneto ignition
surging
liquid line aka
19. A group of one or more bays - including one or more units arranged in a single or continuous structure
single flow turbines
bank
two stage refrigeration system
aero- derivative turbines
20. 1. evaporator coil
ammonia compression cycle low side
plant thermal effificienies
marco cogeneration advantages
inlet air unloader advantages
21. Integral part of the governing system - in the front end and engages at 10-12% above normal operating speed
Above or at atmospheric pressure
air ejectors
mechanical overspeed trip
coagulant aids
22. Independant of the governor - inductive sensor (magnetic speed pickups)
electronic overspeed trip
double pipe hx
anoxic
Pressure below atmospheric
23. Contains 0.5kg of moisture for every 28 cubic meter of air
ISO 9000 certified
gas turbine operating principles
reduce cavitation in extraction pumps
saturated air
24. Radiator type
ammonia compression cycle low side
fluid/air cooler
jacking oil system
scavenging
25. 1. ferrules 2. metallic and fiber packing 3. roll expanding 4. combination - inlet end expanded and belled - outlet pakced or ferruled
saturated air
condenser tube attachment methods
air leak tolerated in condenser up to...
headworks
26. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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27. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity
government regualtions for waste water
extraction pumps usually are _____ type
project management
purpose of a wet receiver
28. Either fixed production or varying
thermal load control
a tandem turbine coupled by flexible couplings
'turbine'
cogeneration reduces energy costs by...
29. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
dry low NOx combustion systems
isochronous governing
purpose of dry receiver
double- flow in reaction turbines
30. Cast with special nickel based alloys - Inconel - Udimet - Waspalloy - Hastelloy
droop
First stage of gas turbine nozzles made of...
dummy pistons
pressure compounding
31. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
centrifugal air compressor disadvantages
compression ratio
types of turbines
legal requirements of record keeping
32. Chrome- iron alloy
Pressure below atmospheric
bay
sealing strips made of...
sentinel vales
33. Use of a rotary lobe air blower
shaft seals
mechanical governors
supercharge
double- flow in reaction turbines
34. 1. Condensing 2. non - condensing (backpressure)
R-134a
components of PM program
hunting
types of turbines
35. Reduction of NOx through ammonia injection priot to catalyst - lowering NOx to 10ppm
3 types of gas turbine combustors
gas turbine efficiencies based on...
air cooling advantages over water cooling
selective catalytic reduction (SCR)
36. Used to satisfy process steam requirements
closed cycle advantages
bakpressure turbines
expansion valve
selective catalytic reduction (SCR)
37. Rows of stationart baldes with alternating rows of moving blades
turbocharge
starters transmit power to front end of gas turbnine by...
surface condenser
reaction turbine components
38. Wrist pins that connect pistons to rod - retained bu circlips
pressure sensitve governors
critical pressure
ejector condenser
gudgeon pins
39. Equal and opposite reation
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40. Attempting to pick up a load - turbines in parallel
types of turbines
hunting
impulse buckets
compressor displacement
41. To remove and properly dispose of pollutants
feature of impulse turbine
waste water treatment purpose
centrifugal air compressor disadvantages
balancing pipe
42. 1. simple design 2. less piping 3. no freezing hazard
R-12
adv of impulse turbine
coalescing filters
air cooling advantages over water cooling
43. 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
types of turbines
mechanical governors
waste water treatment plant components
coagulant aids
44. 1. brass 2. copper 3. cupronickel
refrigeration system charging
condenser safety devices
double flow turbines
heat exchanger materials
45. Refers only to specificly to the turbine section
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46. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based
inlet modulating valve advantages
3 types of communication
impulse buckets
R-134a
47. Nickel steel - strong fully balanced rotor - expensive
what large rotors are made of
purpose of compressor lubrication
R-22
avoid surging
48. Made of cast iron and support by stay bolts to protect against a vacuum
regulation compressor systems
water boxes
cross compound turbine
non - condensables
49. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
ammonia compression cycle high side components
surface condenser
baffle pitch
aerobic
50. Waste heat only
types of reciprocation compressors
unfired
legal requirements of record keeping
steam expanding through stationary nozzles