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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. Velocity increases as passes through nozzles
convergent nozzles
water boxes
when impulse turbine pressure drops
typical temperature for outlet on oil coolers
2. The difference between the no- load and full- load speed - expressed as a %
close cycle disadvantages
droop
servo motor
R-12
3. Removal of exhaust gases by blow air through
marco cogeneration advantages
clean turbine blading with
turbine casings
scavenging
4. 1. compressor discharge 2. condenser 3. liquid receiver
mirco cogeneration advantages
ammonia compression cycle high side components
mechanical draft
single point fuel injection
5. Equal and opposite reation
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6. Chrome- iron alloy
mechanical overspeed trip
sealing strips made of...
sentinel vales
water boxes
7. Direct prosses applications - absorption refrigeration - heat recovery boiler
automatic extraction
secondary cogeneration output
expansion valve
dummy pistons
8. Help maintain definite thrust toward exhaust
regulation compressor systems
balancing pipe
dummy pistons
intercoolers
9. Integral part of the governing system - in the front end and engages at 10-12% above normal operating speed
ammonia compression cycle high side components
inlet modulating valve advantages
mechanical overspeed trip
gas turbine efficiencies based on...
10. Discharge steam when excessive backpressure exists
2 stroke internal combustion
air leak tolerated in condenser up to...
nozzles types
sentinel vales
11. 1. widely used 2. single stage 3. impulse turbine
communication structure
mechanical drive turbine
First stage of gas turbine nozzles made of...
newton's 2nd law
12. 1. compression ration across compressor 2. turbine inlet temperature
mirco cogeneration advantages
2 major factos affecting gas turbine efficiency and power
BOD (biological oxygen demand)
refrigerant evaporator
13. At high temperatures a material stretches
types of reboilers
creep
what large rotors are made of
dry low NOx combustion systems
14. 1. written 2. spoken 3. visual
staging
3 types of communication
turbine casings
methods to detect cooling water leaks
15. Cannot go below -18
sodium chloride
solid injection designs
close cycle disadvantages
oil free compressors
16. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%
supercharge
plant thermal effificienies
magneto ignition
govrenors classes
17. 1. planning 2. implementation 3. review
water/oil separator
types of refrigerant evaporators
project management
sentinel vales
18. Determines how much oxygen aerobic microorganisms that have been placed in the water to decompose organic matter
starters transmit power to front end of gas turbnine by...
tandem compound turbines
Ammonia R-717
BOD (biological oxygen demand)
19. 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
critical path method (CPM)
bakpressure turbines
sprial valve
duct burners in HRSG
20. 1. control range of 0 to 100% load 2. energy efficient
power oil
reduce cavitation in extraction pumps
inlet modulating valve advantages
clean turbine blading with
21. Direct contact type - uses converging nozzles and in moderate vacuum
tandem compound turbines
ejector condenser
electronic overspeed trip
regulation compressor systems
22. Reversal of flow within a compressor - rush in from discharge side sending a shock wave inside compressor
expansion valve
government regualtions for waste water
surging
pressure- velocity compounding
23. 1. evaporator coil
isochronous governing
ammonia compression cycle low side
clean turbine blading with
feature of impulse turbine
24. Controlled pressure from intermediate stages of turbine
fluid/air cooler
speed droop
'turbine'
extraction governor
25. 1. internal 2. external 3. equipment vendors 4. chemical suppliers 5. office equipement vendors
communication structure
closed cycle advantages
thermocouple locations in fired heaters
distinguishing reaction turbine
26. 1. Condensing 2. non - condensing (backpressure)
3 speed sensitive governors
types of turbines
inlet modulating valve advantages
rotary compressor control
27. Dry surface coolers - no contact convection hx - aka finned tube exchangers
disc rotors
aerial coolers
jacking oil system
aerobic
28. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
air dryers
dynamic compressor control
starters transmit power to front end of gas turbnine by...
surface condenser
29. Made of steel - used for double acting pistons - acts as a piston rod
crosshead
plant thermal effificienies
impulse turbine disadvantage
single flow turbines
30. Cooling of air between stages - condense below atmospheric temperature removing moisture - not primary function
pressure compounding
surging
intercoolers
mechanical governors
31. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve
avoid surging
gudgeon pins
condenser tube attachment methods
headworks
32. Defined as one or more tube bundle - served by two or more fans complete with aux equipment
sentinel vales
environmental management program
bay
gas turbine components
33. A group of one or more bays - including one or more units arranged in a single or continuous structure
types of fired heaters
droop
aftercoolers
bank
34. 1. to increase steam production 2. control superheater temperatures 3. meet process demands
duct burners in HRSG
intercoolers
Above or at atmospheric pressure
Ammonia R-717
35. Driving rotating equipment
bakpressure turbines
primary cogeneration output
expansion valve
mechanical drive turbine
36. zeolite molecular sieve desiccant
air dryers
trunk type piston
pressure drop across first row of reation turbine
sodium chloride
37. A verticle well is used to increase the NPSH - gives better performance and less cavitation
reduce cavitation in extraction pumps
oil free compressors
aero- derivative turbines
disc rotors
38. 1. lowers power consumption 2. load changes frequently 3. pilot valve controls loading - adjustable
4 stroke internal combustion
project management
closed cycle advantages
inlet air unloader advantages
39. Forced or induced draft
'bottoming cycle'
mechanical draft
reaction blading
servo motor
40. Change in direction causing a turbine to move
R-12
diesel engines aka
single shaft combine cycle cogeneration
impulse force
41. 1. verticle cyclinder 2. cabin heater 3. central tube wall
bakpressure turbines
3 types of communication
types of fired heaters
cogeneration
42. Does not contain dissolved oxygen
higher compression ratios needed at...
refrigerant evaporator
anaerobic
anoxic
43. Moving blades on a rotor
extraction governor
isochronous governing
impulse buckets
rotary compressor control
44. Made of cast iron and support by stay bolts to protect against a vacuum
reaction blading
water boxes
'turbine'
gas turbine efficiencies based on...
45. 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
difference between diesel and gas engines
anaerobic digesters
dummy pistons
condenser tube sheets made of...
46. Admirally brass or Munte metal - 25-40mm thick
convergent nozzles
2 major factos affecting gas turbine efficiency and power
aerial coolers
condenser tube sheets made of...
47. 1. Nozzle - impulse turbine only 2. throttle - reaction turbine only 3. bypass or overload - used on both turbines
power oil
rotary compressor types
heat exchanger materials
3 speed sensitive governors
48. 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
condenser tube attachment methods
sentinel vales
duct burners in HRSG
49. More rounded than impulse blading
bay
rotary compressor types
closed cycle advantages
reaction blading
50. 1. Responsive to speed changes 2. responsive to pressurre changes
fluid/air cooler
3 types of communication
govrenors classes
shaft seals