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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. The condenser
Above or at atmospheric pressure
largest hx in a plant is...
open cycle
gas turbine advantages
2. drum rotors on reaction turbines eliminates...
methods to detect cooling water leaks
Axial thrust
gas turbine components
gas turbine disadvantages
3. Servomotors
speed droop
surging
convergent nozzles
power oil
4. 1. written 2. spoken 3. visual
double pipe hx
cogeneration
waste water treatment purpose
3 types of communication
5. zeolite molecular sieve desiccant
axial compressors
air dryers
mirco cogeneration advantages
Axial thrust
6. 0.577 times the inlet pressure
sealing strips made of...
expansion valve
purpose of dry receiver
critical pressure
7. 1. simple design 2. less piping 3. no freezing hazard
air cooling advantages over water cooling
methods to detect cooling water leaks
creep
pressure drop across first row of reation turbine
8. 1. increases net power 2. clean working fluid 3. cheap fuel can be used
closed cycle advantages
pressure- velocity compounding
peak power
condenser types
9. The space wherein the liquid refrigerant absorbs heat and boils
aero- derivative turbines
baffle pitch
gas turbine efficiencies based on...
refrigerant evaporator
10. 1. throttle inlet valve 2. reduce compressor speed 3. automatic discharge vent line 4. anit- surge valve - reciruclation 5. anti- surge microprocessor - kickback valve
First stage of gas turbine nozzles made of...
avoid surging
angstrom particles
air cooling advantages over water cooling
11. 1. Responsive to speed changes 2. responsive to pressurre changes
trunk type piston
govrenors classes
angstrom particles
ammonia compression cycle high side components
12. Have advantage of high efficiencies - 10% greater than centrifugal compressors
axial air compressors
adv of impulse turbine
secondary cogeneration output
tandem compound turbines
13. 1. walnuts 2. rice 3. carbo- blase 4. offline water wash - best method
clean turbine blading with
BOD (biological oxygen demand)
isochronous governing
refrigeration safety controls
14. 1. prevent wear 2. reduce friction 3. remove heat 4. reduce corrosion 5. provide sealing
convergent- divergent
purpose of compressor lubrication
feature of impulse turbine
single shaft combine cycle cogeneration
15. Condensing turbines exhaust steam at...
reaction blading
4 stroke internal combustion
Pressure below atmospheric
convergent- divergent
16. Atmospheric or hyperbolic
anaerobic digesters
inlet modulating valve advantages
natural draft cooling tower
aero- derivative turbines
17. Dry surface coolers - no contact convection hx - aka finned tube exchangers
R-134a
coagulant aids
inlet cooling methods - evaporative
aerial coolers
18. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
surface condenser
single point fuel injection
liquid line aka
close cycle disadvantages
19. Made of cast iron and support by stay bolts to protect against a vacuum
sprial valve
surface condenser
water boxes
hairpin hx
20. Forced or induced draft
inlet modulating valve advantages
compressor displacement
components of PM program
mechanical draft
21. Results in a gain in velocity - the moving blades change direction producing force
refrigerant groups
anaerobic digesters
pressure drop across first row of reation turbine
duct burners in HRSG
22. 1. kettle 2. thermosyphon horizontal 3. thermosyphon vertical
centrifugal air compressor disadvantages
types of reboilers
inlet air unloader advantages
dynamic compressor control
23. 1. intake 2. compression 3. power 4. exhaust
single point fuel injection
ammonia compression cycle high side components
4 stroke internal combustion
newton's 2nd law
24. Higher power and speeds
gas turbine blades should be replaced every
double flow turbines
heat exchanger materials
isochronous governing
25. Large turbines couple together on a single shaft applied to one generator
biological removal of solids
gas turbine blades should be replaced every
two stage refrigeration system
tandem compound turbines
26. 1. Carbon ring 2. labyrinth seal 3. water seal
Ammonia R-717
single point fuel injection
shaft seals
angstrom particles
27. Fuel supplied firstg produces electrcial power with thermal energy as a by- product
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28. Ground water monitoring device
Piezometer wells
reaction blading
axial compressors
trunk type piston
29. Overall master plan - comprehensive program
cogeneration
ejector condenser
heat exchanger materials
gantt chart
30. A group of one or more bays - including one or more units arranged in a single or continuous structure
bank
gas turbine components
impulse turbine disadvantage
plant thermal effificienies
31. 1. thrust bearings 2. dummy pistions 3. thrust adjusting gear
methods to offset axial thrust
largest hx in a plant is...
air take 'pulse cleaing systems'
dummy pistons
32. Quantity ofr compressed air and delivered air by the compressor
capacity
Above or at atmospheric pressure
thermocouple locations in fired heaters
extraction pumps usually are _____ type
33. 1. high pressure cutout 2. oil pressure cutout 3. pressure relief devices
adv of impulse turbine
refrigeration safety controls
crossflow
'gas turbine'
34. Monel metal - high tensile strength - nickel copper alloy
3 types of communication
impulse turbine disadvantage
two stage refrigeration system
nozzels made of...
35. Nickel steel - strong fully balanced rotor - expensive
unit
what large rotors are made of
types of refrigerant evaporators
convergent- divergent
36. Each shaft needs a thrust bearing
thermal load control
a tandem turbine coupled by flexible couplings
air dryer types
impulse force
37. Defined as one or more tube bundle - served by two or more fans complete with aux equipment
types of fired heaters
critical path method (CPM)
Piezometer wells
bay
38. KW at 15C standard at sealevel with 60% RH
unit
First stage of gas turbine nozzles made of...
dummy pistons
gas turbine efficiencies based on...
39. To remove and properly dispose of pollutants
jet condensers
gas turbine blades should be replaced every
types of reciprocation compressors
waste water treatment purpose
40. Eliminates thrust - steam admitted midway along casing
bank
double- flow in reaction turbines
compressor valve types
2 major factos affecting gas turbine efficiency and power
41. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily
suction line unloading valve advantages
aftercoolers
gas turbine blades should be replaced every
pressure compounding
42. 1. stabilize flow through air driers 2. additional moisture seperation 3. storage capacity
purpose of a wet receiver
biological removal of solids
clean turbine blading with
close cycle disadvantages
43. Controlled pressure from intermediate stages of turbine
extraction governor
adv of impulse turbine
sealing strips made of...
types of fired heaters
44. 5mm in diameter
types of fired heaters
3 speed sensitive governors
trunk type piston
air leak tolerated in condenser up to...
45. Cool compressed air before point of use
3 speed sensitive governors
aftercoolers
largest hx in a plant is...
intercoolers
46. Change in momentum
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47. Reduces steam pressure and velocity in two or more steps
First stage of gas turbine nozzles made of...
govrenors classes
pressure- velocity compounding
single flow turbines
48. 1. inlet vane 2. electro- pneumatic control 3. microprocessor based control
trunk type piston
headworks
pressure compounding
dynamic compressor control
49. 1. evaporator coil
ammonia compression cycle low side
non - condensing turbines used
power oil
ejector condenser
50. 1. convergent 2. convergent- divergent
aerobic
combined cycle cogeneration
nozzles types
downflow condenser