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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. Cast with special nickel based alloys - Inconel - Udimet - Waspalloy - Hastelloy
First stage of gas turbine nozzles made of...
components of PM program
aero- derivative turbines
automatic extraction
2. Needs to a high vacuum present in system before charging
compressor displacement
types of reboilers
refrigeration system charging
velocity compounding
3. 1. activated sludge 2. rotating biological contactors 3. trickling filters
purpose of dry receiver
bakpressure turbines
biological removal of solids
government regualtions for waste water
4. 1. simple design 2. less piping 3. no freezing hazard
3 types of communication
air cooling advantages over water cooling
impulse force
inlet air unloader advantages
5. Primary fuel produces high thermal energy for processes - the waste heat is used to produce electrical energy
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6. 1. inlet to the convection section 2. betwen convection and radiant section 3. at radiant section outlet
compressor valve types
4 stroke internal combustion
methods to detect cooling water leaks
thermocouple locations in fired heaters
7. Direct prosses applications - absorption refrigeration - heat recovery boiler
pressure sensitve governors
secondary cogeneration output
R-12
mechanical draft
8. Up to 60-90%
'turbine'
biological removal of solids
disc rotors
cogeneration reduces energy costs by...
9. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
avoid surging
difference between diesel and gas engines
expansion valve
types of turbines
10. 1. intake 2. compression 3. power 4. exhaust
4 stroke internal combustion
purpose of dry receiver
aero- derivative turbines
automatic extraction
11. Driving rotating equipment
primary cogeneration output
single shaft combine cycle cogeneration
'bottoming cycle'
sprial valve
12. Centrifugal pumps
thermal load control
crossflow
compressor displacement
extraction pumps usually are _____ type
13. 1. internal 2. external 3. equipment vendors 4. chemical suppliers 5. office equipement vendors
communication structure
anaerobic digesters
suction line unloading valve advantages
nozzles types
14. A verticle well is used to increase the NPSH - gives better performance and less cavitation
reduce cavitation in extraction pumps
jet condensers
selective catalytic reduction (SCR)
pressure compounding
15. Sagging and hogging - 20-40rpm
supercharge
waste water treatment purpose
barring gears prevent
'bottoming cycle'
16. 1. lubricate sliding surfaces 2. cool bearings
lube oil system basic functions
reaction turbine components
thrust adjsusting gear
anaerobic digesters
17. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface
double flow turbines
unfired
communication structure
hairpin hx
18. 1. written 2. spoken 3. visual
moisture separator
speed droop
capacity
3 types of communication
19. Made of polyethylene - skimming from the surface
higher compression ratios needed at...
anaerobic digesters
water/oil separator
lube oil system basic functions
20. Is the ratio of the discharge pressure to the intake pressure absolute
convergent nozzles
unfired
compression ratio
purpose of compressor lubrication
21. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
eutectic solution
mirco cogeneration advantages
to reduce steam and blade velocities
servo motor
22. 1. contact - 'jet' 2. surface
mechanical overspeed trip
impulse force
condenser types
gas turbine blades should be replaced every
23. HFC group - zero ozone depletion - nonflammable and nonexplosive - boiling point of -26.2 - miscibility problem with minerial oil - use sythetics ester based
extraction pumps usually are _____ type
R-134a
a tandem turbine coupled by flexible couplings
camshaft is the link between
24. Straight condensing
automatic extraction
air dryers
lube oil system basic functions
waste water treatment purpose
25. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control
types of gas turbines
rotary compressor control
when impulse turbine pressure drops
Above or at atmospheric pressure
26. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades
peak power
condenser safety devices
double flow turbines
velocity compounding
27. 43-49 degrees C
typical temperature for outlet on oil coolers
air cooling advantages over water cooling
'topping cycle'
R-22
28. 1. individual pump system 2. distributor system 3. common rail system
aero- derivative turbines
3 types of communication
solid injection designs
methods to offset axial thrust
29. Help maintain definite thrust toward exhaust
thrust adjsusting gear
newton's 3rd law of motion
hairpin hx
balancing pipe
30. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter
convergent nozzles
BOD (biological oxygen demand)
reaction turbine
closed cycle advantages
31. 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
marco cogeneration advantages
moisture separator
combined cycle cogeneration
32. 5mm in diameter
double pipe hx
air leak tolerated in condenser up to...
gudgeon pins
compressor valve types
33. Steam expands and pressure drops as it passes through moving blades - unbalance pressure
anoxic
magneto ignition
reaction turbine
surging
34. More rounded than impulse blading
typical temperature for outlet on oil coolers
types of turbines
what large rotors are made of
reaction blading
35. 1. Condensing 2. non - condensing (backpressure)
types of turbines
reaction turbines use ____ bearings
starters transmit power to front end of gas turbnine by...
selective catalytic reduction (SCR)
36. To remove and properly dispose of pollutants
inlet modulating valve advantages
waste water treatment purpose
diesel engines aka
aftercoolers
37. 1. evaporator coil
ammonia compression cycle low side
waste water treatment purpose
steam expanding through stationary nozzles
droop
38. Made of cast iron and support by stay bolts to protect against a vacuum
'gas turbine'
water boxes
First stage of gas turbine nozzles made of...
types of turbines
39. drum rotors on reaction turbines eliminates...
impulse turbine disadvantage
Axial thrust
jet condensers
fluid/air cooler
40. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity
aerial coolers
purpose of a wet receiver
close cycle
downflow condenser
41. The change in sped that resutls from an increase in load
gas turbine efficiencies based on...
First stage of gas turbine nozzles made of...
speed droop
unfired
42. Defined as one or more tube bundle - served by two or more fans complete with aux equipment
bay
camshaft is the link between
coagulant aids
condenser types
43. Each shaft needs a thrust bearing
natural draft cooling tower
dry low NOx combustion systems
a tandem turbine coupled by flexible couplings
diesel engines aka
44. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
inlet air unloader advantages
Axial thrust
regulation compressor systems
oil system components
45. 'booster' compressor
two stage refrigeration system
tandem compound turbines
dry low NOx combustion systems
reaction turbines use ____ bearings
46. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function
intercoolers
reaction turbine components
gas turbine advantages
types of gas turbines
47. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
'turbine'
isochronous governing
inlet cooling methods - evaporative
anaerobic digesters
48. Counter act force and load on thrust bearings
reaction blading
plant thermal effificienies
peak power
dummy pistons
49. 1. control range of 0 to 100% load 2. energy efficient
inlet modulating valve advantages
air dryers
oil system components
thrust adjsusting gear
50. King valve
mechanical overspeed trip
non - condensables
pressure- velocity compounding
liquid line aka