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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. Gives perfect speed regulation 2. regulates turbine to a constant speed at all loads
'topping cycle'
inlet air unloader advantages
isochronous governing
air leaks in condensers
2. Results in a gain in velocity - the moving blades change direction producing force
shaft seals
dummy pistons
non - condensing turbines used
pressure drop across first row of reation turbine
3. Large pressure drop - increase volume to match the increase in steam volume and pressure decreases
inlet air unloader advantages
waste water treatment plant components
expansion valve
convergent- divergent
4. More rounded than impulse blading
baffle pitch
biological removal of solids
First stage of gas turbine nozzles made of...
reaction blading
5. 1. vent to atmosphere 20% 2. condensing 30% 3. exhaust steam used for work 80%
non - condensing turbines used
plant thermal effificienies
single point fuel injection
refrigeration safety controls
6. 1. Split 2. double
First stage of gas turbine nozzles made of...
rotary compressor control
automatic extraction
turbine casings
7. 1. operates on a temperature difference between substances 2. warm to cold only 3. rate of transfer depends on temperature difference
higher compression ratios needed at...
tandem compound turbines
newton's 3rd law of motion
hx principles
8. Use of a rotary lobe air blower
feature of impulse turbine
methods to detect cooling water leaks
rotary compressor control
supercharge
9. On the exhaust side - drives the blower - being connected to the same shaft - increases power by 50-70% as more air is forced into the engine
turbocharge
purpose of compressor lubrication
anaerobic
mirco cogeneration advantages
10. 1. Aero- derivate 2. Heavy duty
barring gears prevent
dual shaft combined cycle cogeneration
counterflow
types of gas turbines
11. 1. individual pump system 2. distributor system 3. common rail system
solid injection designs
reaction turbines use ____ bearings
gantt chart
balancing pipe
12. Ground water monitoring device
fluid/air cooler
primary cogeneration output
Piezometer wells
isochronous governing
13. Fall under provincal boiler pressure regualtions - wcb and local fire marshall regulation and insurance company - need log book - safety device testing records
double flow turbines
pressure compounding
legal requirements of record keeping
dry low NOx combustion systems
14. Used to open and close the by- pass port in a stator - varies the volum compressed air being produced
primary cogeneration output
environmental management program
sprial valve
turbocharge
15. Simple generator - light - no battery - hotter spark at higher speeds
jacking oil system
centrifugal air compressors advantages
'turbine'
magneto ignition
16. The utilization of one form of input energy to generate two or more forms of output energy
air dryer types
cogeneration
legal requirements of record keeping
electronic overspeed trip
17. Good thermal properties - boiling point of -33.3 - pure anhydrous ammonia is noncorrosive - cheap - not miscible in oil - toxic
open cycle
crossflow
turbine casings
Ammonia R-717
18. 1. bare tube 2. finned tube 3. plate surface - a vacuum exists between plates
pressure- velocity compounding
types of refrigerant evaporators
methods to detect cooling water leaks
what large rotors are made of
19. Produce and maintain a vacuum at the turbine exhaust allowing steam to expand to a lower pressure and do more work
steam expanding through stationary nozzles
surface condenser
dual shaft combined cycle cogeneration
diesel engines aka
20. Moving blades on a rotor
impulse buckets
gas turbine efficiencies based on...
inlet air unloader advantages
close cycle
21. 1. inlet to the convection section 2. betwen convection and radiant section 3. at radiant section outlet
power oil
thermocouple locations in fired heaters
critical path method (CPM)
turbocharge
22. 1. Difference in pressure across moving blades 2. steam leaks around edges 3. minimal blade clearances 4. unbalanced thrust
waste water treatment plant components
air take 'pulse cleaing systems'
saturated air
special aspects of reaction turbine
23. 1. remove non - condensables 2. dalton's law of partial pressures 3. reciprocating or rotart pump 4. below baffles
dry low NOx combustion systems
starters transmit power to front end of gas turbnine by...
double- flow in reaction turbines
air ejectors
24. Admirally brass or Munte metal - 25-40mm thick
single flow turbines
condenser safety devices
condenser tube sheets made of...
supercharge
25. Requires annual review of SOPs
air take 'pulse cleaing systems'
speed droop
ISO 9000 certified
gas turbine advantages
26. 1. Condensing 2. non - condensing (backpressure)
dry low NOx combustion systems
compression ratio
types of turbines
anoxic
27. 1. spray 2. fog 3. special evaporator pads
unit
shaft seals
gas turbine components
inlet cooling methods - evaporative
28. 1. cooling water in direct contact 2. drains into a hotwell 3. barometric leg - condenser sits 10.34m above hotwell
jet condensers
automatic extraction
unfired
velocity compounding
29. Is the ratio of the discharge pressure to the intake pressure absolute
3 types of communication
compression ratio
condenser tube sheets made of...
mechanical overspeed trip
30. Driving rotating equipment
types of turbines
mirco cogeneration advantages
supercharge
primary cogeneration output
31. Cast with special nickel based alloys - Inconel - Udimet - Waspalloy - Hastelloy
disc rotors
tandem compound turbines
First stage of gas turbine nozzles made of...
regulation compressor systems
32. 1. large volumes of air 2. simple and rugged 3. low maintenance
waste water treatment plant components
solid injection designs
refrigerant groups
centrifugal air compressors advantages
33. Velocity increases as passes through nozzles
when impulse turbine pressure drops
typical temperature for outlet on oil coolers
impulse buckets
diesel engines aka
34. DLN - reduce NOx down to 9ppm but have an increased combustion area
axial air compressors
cross compound turbine
pressure- velocity compounding
dry low NOx combustion systems
35. U- tubes - surface areas less than 18 cubic meters - has small heat transfer surface
water/oil separator
double- flow in reaction turbines
downflow condenser
hairpin hx
36. Used to satisfy process steam requirements
inlet cooling methods - evaporative
'topping cycle'
starters transmit power to front end of gas turbnine by...
bakpressure turbines
37. Countries with small grids or specail grid requirements - has a high efficiency at base loads
pressure drop across first row of reation turbine
waste water treatment purpose
inlet cooling methods - evaporative
dual shaft combined cycle cogeneration
38. Refers to the production of power during overload demands
2 major factos affecting gas turbine efficiency and power
impulse force
peak power
to reduce steam and blade velocities
39. 1. large volums of air at medium pressures - high speed 2. free air capacities range from 2.8 to 3700 cubic meters
centrifugal air compressor disadvantages
crossflow
aero- derivative turbines
environmental management program
40. Seperately forged discs or wheels and shrunk onto shaft
Piezometer wells
disc rotors
condenser tube sheets made of...
eutectic solution
41. 1. low power consumption 2. frequent load changes 3. adjustable 4. suction valve change easily
intercoolers
purpose of a wet receiver
suction line unloading valve advantages
air leak tolerated in condenser up to...
42. 1. start- stop (sliding vane) 2. load- unload (rotary) 3. modulating inlet 4. mircoprocessor based control
double- flow in reaction turbines
rotary compressor control
impulse buckets
reaction turbines use ____ bearings
43. The volum swept out by the piston - same through all stages
'gas turbine'
thrust adjsusting gear
reaction turbine components
compressor displacement
44. Made of cast iron and support by stay bolts to protect against a vacuum
expansion valve
staging
water boxes
combined cycle cogeneration
45. King valve
cross compound turbine
liquid line aka
thermocouple locations in fired heaters
heat exchanger materials
46. 1. intake 2. compression 3. power 4. exhaust
nozzels made of...
Piezometer wells
crosshead
4 stroke internal combustion
47. Desiccant or refrigerant 1. heatless regeneration 2. heated regeneration
dual shaft combined cycle cogeneration
air leaks in condensers
air dryer types
air ejectors
48. Has steam directed through baffles making 4 passes
downflow condenser
types of reboilers
saturated air
inlet modulating valve advantages
49. Independant of the governor - inductive sensor (magnetic speed pickups)
R-12
air dryers
electronic overspeed trip
expansion valve
50. No dissolved oxygen but does contain nitrates
R-12
pressure sensitve governors
anoxic
bay