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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. An 'overrunning' clutch
aero- derivative turbines
starters transmit power to front end of gas turbnine by...
3 types of communication
reduce cavitation in extraction pumps
2. Refers to the production of power during overload demands
environmental management program
mechanical drive turbine
creep
peak power
3. Means to come together and form one mass - removes oil and water from air
coalescing filters
newton's 3rd law of motion
Pressure below atmospheric
angstrom particles
4. Moderate compression ratio - giving improved volumetric efficiency - but not lower discharge air temperature
thermal load control
rotary compressor control
staging
primary cogeneration output
5. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
anaerobic
isochronous governing
double- flow in reaction turbines
largest hx in a plant is...
6. Used on large turbines to supply lower part of the bearing with oil to prevent metal to metal contact
reaction turbine
air dryer types
jacking oil system
aero- derivative turbines
7. Contains dissolved oxygen
thrust adjsusting gear
expansion valve
aerobic
two stage refrigeration system
8. Grit chambers and screens for waster water system
cross compound turbine
waste water treatment plant components
adv of impulse turbine
headworks
9. Small clearances between discs on shaft to...
speed droop
avoid surging
Prevent thermal stresses
turbine casings
10. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
air dryer types
headworks
critical pressure
double pipe hx
11. 1. backpressure 2. condensate levels 3. contanimation 4. vacuum pay- off relays (10 to 40kPa) 5. vacuum trip relays (50kPa)
ISO 9000 certified
condenser safety devices
air cooling advantages over water cooling
3 speed sensitive governors
12. 0.577 times the inlet pressure
critical pressure
hairpin hx
largest hx in a plant is...
Prevent thermal stresses
13. 1. intake 2. compression 3. power 4. exhaust
4 stroke internal combustion
balancing pipe
waste water treatment plant components
primary cogeneration output
14. Made of cast iron and support by stay bolts to protect against a vacuum
newton's 2nd law
dummy pistons
water boxes
hx principles
15. 1. control range of 0 to 100% load 2. energy efficient
types of reboilers
purpose of dry receiver
mechanical draft
inlet modulating valve advantages
16. 43-49 degrees C
typical temperature for outlet on oil coolers
convergent- divergent
communication structure
bay
17. 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
refrigerant groups
mechanical drive turbine
single point fuel injection
coagulant aids
18. Rows of stationart baldes with alternating rows of moving blades
reaction turbine components
feature of impulse turbine
ejector condenser
hx principles
19. Increase pressure affecting performance of condenser but do not incresase temperature
air ejectors
duct burners in HRSG
turbine casings
air leaks in condensers
20. 1. Aero- derivate 2. Heavy duty
dynamic compressor control
creep
types of gas turbines
non - condensing turbines used
21. Too small to settle out - add floc
critical pressure
environmental management program
angstrom particles
bay
22. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
2 major factos affecting gas turbine efficiency and power
inlet air unloader advantages
oil system components
convergent nozzles
23. One or more tube bundles - in one or more bays for an individual service or process
oil free compressors
plant thermal effificienies
eutectic solution
unit
24. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
single shaft combine cycle cogeneration
dummy pistons
reaction turbine components
coalescing filters
25. 1. can - annular 2. annular 3. single- can
speed droop
non - condensables
3 types of gas turbine combustors
refrigerant groups
26. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
inlet cooling methods - evaporative
higher compression ratios needed at...
dynamic compressor control
speed droop
27. Results in a gain in velocity - the moving blades change direction producing force
marco cogeneration advantages
pressure drop across first row of reation turbine
typical temperature for outlet on oil coolers
mechanical overspeed trip
28. 1. CCME 2. CEQG 3. CWQG 4. US EPA
R-12
government regualtions for waste water
combined cycle cogeneration
mechanical governors
29. Each stage seperated by partitions - nozzles set into diaphragms
Piezometer wells
bakpressure turbines
pressure compounding
aftercoolers
30. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%
impulse turbine disadvantage
adv of impulse turbine
plant thermal effificienies
feature of impulse turbine
31. Reduces steam pressure and velocity in two or more steps
biological removal of solids
pressure- velocity compounding
double flow turbines
cogeneration reduces energy costs by...
32. Hydraulic cylinder or pisston on a governor
two stage refrigeration system
extraction pumps usually are _____ type
cogeneration
servo motor
33. Calcium chloride and water - -51
water/oil separator
brine
duct burners in HRSG
velocity compounding
34. Refers only to specificly to the turbine section
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35. drum rotors on reaction turbines eliminates...
types of refrigerant evaporators
centrifugal air compressor disadvantages
impulse buckets
Axial thrust
36. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function
diesel engines aka
hairpin hx
surface condenser
intercoolers
37. The condenser
largest hx in a plant is...
condenser safety devices
starters transmit power to front end of gas turbnine by...
compressor valve types
38. Integral part of the governing system - in the front end and engages at 10-12% above normal operating speed
difference between diesel and gas engines
centrifugal air compressors advantages
thermocouple locations in fired heaters
mechanical overspeed trip
39. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants
mechanical drive turbine
centrifugal air compressor disadvantages
saturated air
cogeneration application areas
40. Large turbines with a generator on each shaft
balancing pipe
3 types of communication
cross compound turbine
gudgeon pins
41. Compression ignititon engines
special aspects of reaction turbine
thermocouple locations in fired heaters
environmental management program
diesel engines aka
42. A verticle well is used to increase the NPSH - gives better performance and less cavitation
reduce cavitation in extraction pumps
non - condensables
crossflow
hairpin hx
43. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
feature of impulse turbine
reaction turbines use ____ bearings
oil system components
anaerobic digesters
44. 1. contact - 'jet' 2. surface
single flow turbines
headworks
condenser types
impulse force
45. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
lube oil system basic functions
sealing strips made of...
purpose of compressor lubrication
critical pressure
46. Large turbines couple together on a single shaft applied to one generator
unfired
tandem compound turbines
unit
nozzles types
47. Very high speed with extremely high centrigufal force and high frictional losses
feature of impulse turbine
pressure drop across first row of reation turbine
diesel engines aka
impulse turbine disadvantage
48. Counter act force and load on thrust bearings
dummy pistons
purpose of a wet receiver
nozzels made of...
expansion valve
49. 1. evaporator coil
types of reboilers
'bottoming cycle'
ammonia compression cycle low side
impulse buckets
50. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
barring gears prevent
condenser safety devices
types of turbines
waste water treatment purpose