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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. Very high speed with extremely high centrigufal force and high frictional losses
power oil
impulse turbine disadvantage
typical temperature for outlet on oil coolers
suction line unloading valve advantages
2. 1. control range of 0 to 100% load 2. energy efficient
reaction blading
staging
air take 'pulse cleaing systems'
inlet modulating valve advantages
3. 1. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
isochronous governing
waste water treatment plant components
refrigeration safety controls
clean turbine blading with
4. 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
base load
air dryers
dry low NOx combustion systems
5. Either fixed production or varying
camshaft is the link between
refrigeration safety controls
thermal load control
Axial thrust
6. 1. written 2. spoken 3. visual
3 types of communication
impulse buckets
gas turbine disadvantages
brine
7. Air flow is upward
counterflow
pressure- velocity compounding
open cycle
'topping cycle'
8. 1. evaporator coil
project management
compression ratio
cogeneration
ammonia compression cycle low side
9. King valve
difference between diesel and gas engines
waste water treatment purpose
liquid line aka
closed cycle advantages
10. 1. Aero- derivate 2. Heavy duty
air leaks in condensers
3 speed sensitive governors
types of gas turbines
inlet air unloader advantages
11. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced
surface condenser
biological removal of solids
aero- derivative turbines
sprial valve
12. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades
automatic extraction
supercharge
velocity compounding
mechanical drive turbine
13. A thrust block that enables the axial position of the rotor to be controlled
jet condensers
gas turbine operating principles
impulse turbine disadvantage
thrust adjsusting gear
14. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily
jacking oil system
double- flow in reaction turbines
suction line unloading valve advantages
aero- derivative turbines
15. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants
compressor displacement
newton's 3rd law of motion
cogeneration application areas
types of reciprocation compressors
16. The volum swept out by the piston - same through all stages
air take 'pulse cleaing systems'
hairpin hx
purpose of compressor lubrication
compressor displacement
17. 1. use clean burning fuels 2. less fuel being used - saving energy reserves 3. electrical production onsite lowers construction demands for new sites and reduces transmission line power losses
marco cogeneration advantages
tangs
ammonia compression cycle high side components
crossflow
18. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
angstrom particles
purpose of a wet receiver
types of turbines
purpose of dry receiver
19. Refers to the production of electricity form two sources utilizing one fuel source
cogeneration
distinguishing reaction turbine
combined cycle cogeneration
compressor displacement
20. drum rotors on reaction turbines eliminates...
axial compressors
downflow condenser
Axial thrust
legal requirements of record keeping
21. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve
baffle pitch
avoid surging
convergent- divergent
largest hx in a plant is...
22. The utilization of one form of input energy to generate two or more forms of output energy
condenser safety devices
cogeneration
tangs
thermocouple locations in fired heaters
23. Grit chambers and screens for waster water system
starters transmit power to front end of gas turbnine by...
headworks
baffle pitch
when impulse turbine pressure drops
24. zeolite molecular sieve desiccant
bakpressure turbines
saturated air
air dryers
electronic overspeed trip
25. Small clearances between discs on shaft to...
peak power
Prevent thermal stresses
refrigerant evaporator
centrifugal air compressor disadvantages
26. Discharge steam when excessive backpressure exists
reaction blading
sentinel vales
air ejectors
duct burners in HRSG
27. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
inlet air unloader advantages
pressure drop across first row of reation turbine
aerobic
types of reboilers
28. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates
suction line unloading valve advantages
project management
types of refrigerant evaporators
bakpressure turbines
29. 1. reduce total energy bill 2. compact - les maintenance 3. short start up time 4. wide range of configurations
gantt chart
higher compression ratios needed at...
mirco cogeneration advantages
air dryers
30. Overall master plan - comprehensive program
mirco cogeneration advantages
gantt chart
peak power
nozzles types
31. Higher altitudes
R-134a
primary cogeneration output
higher compression ratios needed at...
refrigerant evaporator
32. 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
avoid surging
baffle pitch
tangs
critical path method (CPM)
33. Cool compressed air before point of use
types of reciprocation compressors
'bottoming cycle'
cogeneration reduces energy costs by...
aftercoolers
34. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
supercharge
BOD (biological oxygen demand)
purpose of compressor lubrication
axial compressors
35. Pieces left on tips of turbine blading so the shrouding canbe attached to correspond with strips
coalescing filters
cross compound turbine
reaction turbines use ____ bearings
tangs
36. 1. activated sludge 2. rotating biological contactors 3. trickling filters
biological removal of solids
newton's 3rd law of motion
project management
Ammonia R-717
37. 1. start and stop control (reciprocating compressors) 2. variable speed (dymanic and rotary compressors) 3. constant speed (positive displacement)
coalescing filters
secondary cogeneration output
regulation compressor systems
mechanical overspeed trip
38. Velocity increases as passes through nozzles
downflow condenser
electronic overspeed trip
pressure drop across first row of reation turbine
when impulse turbine pressure drops
39. Simple generator - light - no battery - hotter spark at higher speeds
refrigeration system charging
extraction governor
impulse turbine disadvantage
magneto ignition
40. Monel metal - high tensile strength - nickel copper alloy
compressor valve types
extraction governor
nozzels made of...
3 speed sensitive governors
41. 1. widely used 2. single stage 3. impulse turbine
mechanical drive turbine
reaction turbine components
shaft seals
mechanical overspeed trip
42. Compression ignititon engines
inlet air unloader advantages
aerial coolers
ammonia compression cycle high side components
diesel engines aka
43. Hydraulic cylinder or pisston on a governor
crossflow
servo motor
nozzels made of...
gas turbine advantages
44. Dry surface coolers - no contact convection hx - aka finned tube exchangers
fluid/air cooler
4 stroke internal combustion
aerial coolers
types of turbines
45. 1. need cooling water 2. low hx efficiencies 3. complex in size - increase in costs
mechanical overspeed trip
close cycle disadvantages
dummy pistons
pressure sensitve governors
46. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
regulation compressor systems
single shaft combine cycle cogeneration
combined cycle cogeneration
to reduce steam and blade velocities
47. Use of a rotary lobe air blower
secondary cogeneration output
barring gears prevent
supercharge
refrigerant groups
48. 1. titling pad Kingsbury (journal bearing) 2. Michel thrust bearing
newton's 2nd law
steam expanding through stationary nozzles
gantt chart
reaction turbines use ____ bearings
49. Air drawn from atmosphere - working fluid
gas turbine operating principles
hunting
project management
open cycle
50. Eliminates thrust - steam admitted midway along casing
government regualtions for waste water
double- flow in reaction turbines
double pipe hx
condenser tube attachment methods