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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. 1. Split 2. double
turbine casings
centrifugal air compressors advantages
'bottoming cycle'
ISO 9000 certified
2. Velocity increases as passes through nozzles
when impulse turbine pressure drops
single flow turbines
extraction pumps usually are _____ type
air cooling advantages over water cooling
3. The difference between the no- load and full- load speed - expressed as a %
First stage of gas turbine nozzles made of...
tangs
droop
suction line unloading valve advantages
4. Refers to the production of power during overload demands
mirco cogeneration advantages
servo motor
peak power
water boxes
5. 1. Single flow 2. double flow 3. automatic extraction 4. backpressure
dual shaft combined cycle cogeneration
purpose of compressor lubrication
types of turbines
environmental management program
6. 1. deman reservoir 2. avoid overloading compressor 3. dampens deew point and temperature spikes rom air dryer
government regualtions for waste water
purpose of dry receiver
impulse buckets
saturated air
7. Discharge steam when excessive backpressure exists
compression ratio
bank
sentinel vales
inlet cooling methods - evaporative
8. 1. large volumes of air 2. simple and rugged 3. low maintenance
bay
2 major factos affecting gas turbine efficiency and power
centrifugal air compressors advantages
'topping cycle'
9. The utilization of one form of input energy to generate two or more forms of output energy
cogeneration
shaft seals
capacity
gas turbine disadvantages
10. 1. compression ration across compressor 2. turbine inlet temperature
legal requirements of record keeping
2 major factos affecting gas turbine efficiency and power
staging
disc rotors
11. 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
anaerobic digesters
convergent- divergent
secondary cogeneration output
double- flow in reaction turbines
12. 1. CCME 2. CEQG 3. CWQG 4. US EPA
largest hx in a plant is...
saturated air
government regualtions for waste water
convergent- divergent
13. Large turbines with a generator on each shaft
pressure sensitve governors
avoid surging
inlet modulating valve advantages
cross compound turbine
14. drum rotors on reaction turbines eliminates...
Axial thrust
gas turbine advantages
magneto ignition
compressor valve types
15. Countries with small grids or specail grid requirements - has a high efficiency at base loads
heat exchanger materials
dual shaft combined cycle cogeneration
diesel engines aka
types of turbines
16. Increased efficiency due to decreased frictional losses
inlet air unloader advantages
gas turbine operating principles
adv of impulse turbine
types of refrigerant evaporators
17. Centrifugal pumps
jet condensers
difference between diesel and gas engines
extraction pumps usually are _____ type
refrigeration system charging
18. CFC group - safe nontoxic - but long atmospheric life span of 100 years - boiling point of -29.8
Axial thrust
centrifugal air compressors advantages
R-12
inlet cooling methods - evaporative
19. 1. control range of 0 to 100% load 2. energy efficient
inlet modulating valve advantages
shaft seals
centrifugal air compressors advantages
counterflow
20. 5mm in diameter
selective catalytic reduction (SCR)
extraction pumps usually are _____ type
disc rotors
air leak tolerated in condenser up to...
21. The volum swept out by the piston - same through all stages
compressor displacement
oil system components
types of refrigerant evaporators
types of turbines
22. 1. Flyweights 2. coutner spring 3. function based on centrifugal force
extraction pumps usually are _____ type
mechanical governors
natural draft cooling tower
largest hx in a plant is...
23. Control a steady backpressure - sensing element in exhuast line
gantt chart
pressure sensitve governors
condenser tube attachment methods
unit
24. Driving rotating equipment
'topping cycle'
magneto ignition
primary cogeneration output
aerial coolers
25. Polymers (polyelectrolytes)
aerobic
coagulant aids
aerial coolers
heat exchanger materials
26. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function
disc rotors
condenser tube sheets made of...
intercoolers
camshaft is the link between
27. KW at 15C standard at sealevel with 60% RH
air dryer types
gas turbine efficiencies based on...
difference between diesel and gas engines
pressure sensitve governors
28. Either fixed production or varying
creep
hairpin hx
thermal load control
when impulse turbine pressure drops
29. Servomotors
centrifugal air compressor disadvantages
feature of impulse turbine
power oil
bakpressure turbines
30. Increase pressure affecting performance of condenser but do not incresase temperature
air leaks in condensers
sodium chloride
air cooling advantages over water cooling
avoid surging
31. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference
methods to offset axial thrust
dummy pistons
hx principles
newton's 3rd law of motion
32. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases
convergent- divergent
air take 'pulse cleaing systems'
magneto ignition
condenser tube attachment methods
33. Set of stationary nozzles and 2 sets of rotating blades - pressure drop occurs in stationary blades
close cycle disadvantages
condenser tube attachment methods
velocity compounding
supercharge
34. 1. commercial establishments 2. industrail processes 3. localized central heating of small plants
inlet cooling methods - evaporative
cogeneration application areas
closed cycle advantages
to reduce steam and blade velocities
35. 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
types of gas turbines
solid injection designs
aftercoolers
36. Has the highest level of thermal efficiency - low capital costs - fast start up - quick to build - low maint cost
combined cycle cogeneration
thermocouple locations in fired heaters
closed cycle advantages
single shaft combine cycle cogeneration
37. Wrist pins that connect pistons to rod - retained bu circlips
inlet cooling methods - evaporative
gudgeon pins
reaction turbine
R-12
38. Refers only to specificly to the turbine section
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39. Has steam directed through baffles making 4 passes
avoid surging
downflow condenser
newton's 2nd law
components of PM program
40. Is the ratio of the discharge pressure to the intake pressure absolute
compression ratio
a tandem turbine coupled by flexible couplings
close cycle
solid injection designs
41. Higher power and speeds
double flow turbines
surface condenser
velocity compounding
supercharge
42. 1. compressor discharge 2. condenser 3. liquid receiver
double pipe hx
what large rotors are made of
ammonia compression cycle high side components
mechanical draft
43. Nickel steel - strong fully balanced rotor - expensive
sprial valve
what large rotors are made of
electronic overspeed trip
typical temperature for outlet on oil coolers
44. Main purpose to protect the evnironment (air - water and soil) and create public awareness - involves training - monitoring and reporting
secondary cogeneration output
open cycle
environmental management program
power oil
45. 1. individual pump system 2. distributor system 3. common rail system
solid injection designs
aerobic
starters transmit power to front end of gas turbnine by...
Above or at atmospheric pressure
46. 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
types of reboilers
critical path method (CPM)
starters transmit power to front end of gas turbnine by...
surging
47. Each shaft needs a thrust bearing
a tandem turbine coupled by flexible couplings
hunting
liquid line aka
when impulse turbine pressure drops
48. As prime movers in pulp and paper industry
non - condensing turbines used
types of gas turbines
aerial coolers
purpose of compressor lubrication
49. Made of steel - used for double acting pistons - acts as a piston rod
open cycle
legal requirements of record keeping
axial compressors
crosshead
50. Use teflon or carbon to lubricate system
purpose of compressor lubrication
thermal load control
cogeneration reduces energy costs by...
oil free compressors