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Test your basic knowledge |
Power Engineering 3
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. pneumatic 2. electronic 3. optical
Cartridge fuses
Current flow
Types of transmission media
DI
2. The sum of individual current through each loop or path are equal to the total current
AC rotors
Lightning arrestors
Parallel
Fuel NOx
3. The effective value of current and voltage - apparent power
Power in AC circuit
Types of conditions that determine traps used
Lead current
SCADA
4. Liquid being measured must be able to mix with the gas or air in the bubbler
Amortisseur advantage
Mmf (magnetomotive force)
DATA sheet
Disadvantage of bubblers
5. 1. anthracite 2. bituminous 3. sub- bituminous 4. lignite
Amortisseur
Magnetic field direction and intensity depend on...
Coal classification
Rheostat
6. Direction and intensity of the current flow
Cartridge fuses
Magnetic field direction and intensity depend on...
Load cells
DI
7. Oscillate - on - off control behavior
Reactance
Gain increased too much
Primary purpose behind legislation
Class C
8. In AC it is equal to the effective current x voltage - only when in phase
Power factor
Pnuematic controls need boosters over
Elbow taps
Advantages of natural gas
9. 1. isolation from upsets 2. improves loop dynamics 3. removes valve charcteristics from the influences 4. second loop provides exact control
The function of the ASME Boiler and Pressure Vessel Committee
Electricity
Shunt wound generator
Advantage of cascade control
10. Terminal voltage decreases with increase of lead - field weakened by reduction of emf and it depends on the residual magnetism in the field circuit
Parallel
Shunt wound generator
Key elements of a successful emergency response plan
Impedance
11. Occurs when some of the elements pass to the stack
Emergency response
Incomplete combustion
Derivative control (RATE)
Sprinlker types
12. Casues the neutral plane within whcih brushes have been placed to shift - so that the brushes are now shorting the coils - which produce voltage (sparking) - use interpoles to neutralize condition
Class F
Bellows
Armature reaction
Plug fuses
13. One controlled variable and two manipulated variable as output - 'Duplex Controlres
Types of transmission media
Coulomb
DC generator types
Split range control
14. The offset of a proportional controller decreases to maintain SP
Cascade control
As gain increases or the proportional band decreases
Power in AC circuit
Coal classification
15. Poisonous and infectious materials
Atmospheric bubbler
Capacitance
Class D
3 pahse alternator
16. Technical document that provides details and information - health effects - hazard evaluation - measure to protect workers at risk of overexposure - emergency procedures
Cosine of phase angle
Components of a DCS
MSDS
Offset
17. Causes current to lag behinde the applied voltage by 90 degrees
Inductance in a pure inductive current
Nutating disc meter
3 combustible elements in any fuel
Impediance triangle
18. % moisture - fixed carbon
3 phase transformer
Feedback trim
Impedance
Heat information is obtained from the ultimate analysis of fuel
19. Storage facility not required - Clean burning - no ash - Stack emission are relatively clean - Easily mixed with air - Does not require any extensive handling equipment - Easy to control
Kilomole
Microwave signals sent in a series of...
Types of transmission media
Advantages of natural gas
20. Is the current in any line voltage - phase volts
Load cells
1.73
Advantages of natural gas
Class E
21. High heat transfer coefficient - low density (1/4 of air) and can increase output up to 20-30% of transformer
WHMis...
Rheostat
Conductance probes
Hydrogen cooling
22. 6 times its normal full load current
Coal classification
Induction motor will take a starting current up to...
Long shunt
Transmission media
23. Allows control from one location
DCS
Ultransonic
VFD
Inductance effects
24. Ground faults
Types of transmission media
3 classes of standpipes
Complete combustion
Insulation major cause of...
25. Supervisory control and data application
Radiation pyrometer
As gain increases or the proportional band decreases
SCADA
Proportional band
26. Equal to the charge on 6.242 x 10 to 18th power of electrons - quantity of electricity
IE =
Plug fuses
Coulomb
Inductance effects
27. Self starting
Amortisseur
Disadvantage of bubblers
3 phase induction motors
Cascade control
28. Salient and cylindrical
Dulong
Electrostatic precipitators
Ultimate analysis...
AC rotors
29. Low accuracy at low velocities - can plug with certain fluids - sensitive to local disturbances
Thermopile
RTU
Pitot tube...
Closed- loop (feedback)
30. Can act as an induction motor - 3 directional inverse time overcurrent relays
Dead generator energization protection
Workplace label
Motor action
Ladder logic
31. Prevents/dampens external vibration
Impediance triangle
Amortisseur advantage
Ultimate analysis...
Double bourdon tube...
32. Produces sticky - cohesive mass when heated - carbon content is lower than anthracite - but volatile matter content is higher.
Feedback trim
Bituminous
If error appears quickly
Reducing the amount of excess air...
33. Wander erratically
Root mean square...
Double bourdon tube...
Nonconductor valence electrons
Standyby power
34. Load current is also the excitation current - never operate without a load - has high starting torque
Photovoltaic
Coulomb
Series motor
Amortisseur advantage
35. There is no relative movement between the rotor bars and teh flux of the rotating field - countacts speed changes
Amortisseur advantage
Current flow
Thermal NOx
Reducing the amount of excess air...
36. Arc range of 270 degrees
Current flow
Key elements of a successful emergency response plan
Bourdon tube...
Amortisseur
37. Power in watts
VFD
IE =
4.35kg of air
Control loop 4 basic functions
38. 'hops'
Microwave signals sent in a series of...
Single phase circuit
Gain increased too much
Generator action
39. The fule - the method of firing - the burner and furnace design and load on boiler
Induction motor will take a starting current up to...
MCC
Vena contracta
Amount of excess air depends on...
40. Organically bound component of the fuel
Fuel NOx
Proportional band
Thermal NOx
3 factors affecting emf
41. Conductor being moved - 'cut' magnetic fields of flux relative to the conductor movement - using fleming's right hand rule
Typical heating values for fuel oil
Generator action
Disadvantage of bubblers
Transmission media
42. Range of 250mm water to 350kPa
Bellows
Effective current flowing through an AC circuit
Power loss through a conductor
CRN 920.5193
43. Magnetic flux produced by one coil that cuts the lines of the conductors of the second coil - creating a voltage induced in the second coil
Impediance triangle
Fuel NOx
Magnetic field direction and intensity depend on...
Mutual inductance
44. Imaginary power
Fire extinguishers
Torque in an armature
Hydrants
Reactive power
45. Used to linearize the measurement signal
Disadvantages of natural gas
Square root extractor
Capacitors
Shunt wound generator
46. Help reverse the current int eh coil passing under the brushes - commutations
Reactance
SCADA
Interpoles
Offset
47. Controller output is above minimum value when error is zero
Effective current flowing through an AC circuit
1.73
Better control if...
Code calculations
48. AC drivers/inverters - solid stated devices and have a low power conversion for losses
Code calculations
VFD
Manhole exceeding allowed size as per pg 29.3
Fire response procedure
49. Can have a leading PF - lowering the plant energy costs
Derivative control (RATE)
DI
Synchronous motor advantage
Standyby power
50. Is the free electrons that are attracted by the positive terminal of thevoltage supply and will flow out continuously from the negative terminal
Induction motors with wound rotors
Single phase circuit
Current flow
Feedforward control