SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. The chemical union of the combustible elements of a fuel and the oxygen in the air - at a rate that produces useful heat energy
Combustion
RTD
Synchronous motor advantage
Reducing the amount of excess air...
2. Must be registered with the Provincial Boilers and Safety Division in local area
Lightning arrestors
Complete combustion
Piping systems with volumes over 0.5 cubic meters (18 cubic feet)
Lenz's law
3. Is the total opposition in a curcuit to the flow of the current
Root mean square...
Amortisseur advantage
AC rotors
Impediance triangle
4. Second element of WHMIS
Power factor
Atmospheric bubbler
DATA sheet
Long shunt
5. Impact force - +- 0.5% accuracy - good in corrosive environments - up to 10000kPa and 400 degrees
Target flow meter
Pnuematic controls need boosters over
Types of hydrants
Ratio control
6. 1. wet pipe 2. dry pipe 3. preaction - double interlocked 4. combination of dry and preaction 5. deluge
Ratio control
Sprinlker types
Derivative control (RATE)
Reversal of power
7. Liquid being measured must be able to mix with the gas or air in the bubbler
Disadvantage of bubblers
Piping systems with volumes over 0.5 cubic meters (18 cubic feet)
If error appears quickly
Magnetic field direction and intensity depend on...
8. Salient and cylindrical
AC rotors
'In phase'
1.73
Occupational health and safety
9. Current after voltage - inductive load
Hydrogen cooling
Advantages of natural gas
Lagging current
Types of hydrants
10. Is the total opposition - Z
Fire response procedure
Impedance
Disadvantages of natural gas
Pnuematic controls need boosters over
11. The ratio of change of output to change of input
Occupational health and safety
Gain (k)
3 factors affecting emf
Gain increased too much
12. Sum of current flowing away = sum flowing towards - and any closed path in an electrical circuit the sum of the voltages is zero as current passes through the resistors
13. 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
Class A
Advantages of natural gas
Active power
Cartridge fuses
14. Exactly the theoretically amount of air necessary was supplied and the combustibles were all completely burned
Types of conditions that determine traps used
Perfect combustion
4.35kg of air
Proportional band
15. Produces sticky - cohesive mass when heated - carbon content is lower than anthracite - but volatile matter content is higher.
Bituminous
Impediance triangle
Air
Class D
16. % moisture - fixed carbon
Plug fuses
Heat information is obtained from the ultimate analysis of fuel
Long shunt
Lap windings
17. Lowers wasted heat - lowers power requriements for forced draft and induced draft fans
Power factor
Lenz's law
Lap windings
Reducing the amount of excess air...
18. Used to linearize the measurement signal
Standpipe systems
Stack gases contain
Square root extractor
Petroleum cracking
19. Used in building over 3 stores - 14m
Nonconductor valence electrons
Standpipe systems
Proportional band
Lenz's law
20. The percent of the process variable range that causes 100% change in the controller output
Ladder logic
3 phase transformer
Proportional band
Lenz's law
21. Opposition to liquid head pressure
Fuel NOx
Atmospheric bubbler
Magnetic flowmeters
Class E
22. Corrosive materials
Combustion
Ampere
IE =
Class E
23. Promote safety and uniformity in the design - construction - installation - operation - testing - and repair of boilers - pressure vessels - and related equipment
Difference between upper and lower calorific values
Conductance probes
Complete combustion
The purpose of the CSA B-51
24. Design number followed by the provinces - the registered - the design in chronological order proceeding the decimal
Automatic starters
Series motor
CRN 920.5193
Fuel NOx
25. Is the free electrons that are attracted by the positive terminal of thevoltage supply and will flow out continuously from the negative terminal
Bituminous
Seperately excited
Feedback control
Current flow
26. Break contact with the line side first - line side first when installing
Lightning arrestors
1.73
Removing fuses from live currents
Better control if...
27. 1. product identifier 2.hazard symbol 3. risk phases 4. precautionary statement 5. fist aid 6. supplier information 7. reference to MSDS
Incomplete combustion
Main advantages of burning biomass fuels
Supply label
Bellows
28. Canadian Standard Association (CSA) - American Society of Mechanical Engineers (ASME) - National Board of Boiler and Pressure Vessel Inspectors (NBBI)
Proportional band less than 2%
Codes that have been adopted by various Canadian Jurisdictions
Disadvantage of bubblers
Standyby power
29. Just enough oxygen for complete combustion
Theoretical air
Magnetic flowmeters
Power factor
Series motor
30. To provide electrical power for whatever need in a safe and dependable manner
Main function of a power distribution system
Derivative control (RATE)
MCC
Long shunt
31. High heat transfer coefficient - low density (1/4 of air) and can increase output up to 20-30% of transformer
Gain increased too much
Communicator
Hydrogen cooling
Mutual inductance
32. Oscillate - on - off control behavior
Gain increased too much
Resistance is dependant on...
Kirchhoff's law
Radiation detector
33. More expensive - Involves the use of long large diameter pipelines - Hydrogen content in gas decreases the efficiency of combustion. Each kg of hydrogen produces 9 kg of water
Lap windings
Disadvantages of natural gas
Photovoltaic
Vena contracta
34. 1. identify probable emergencies 2. notification process (who and when) 3. determine immediate personal actions to be taken 4. minimize adverse effects on personnel - property and environment
Impedance
Key elements of a successful emergency response plan
Split range control
Current flow
35. Mircroprocessors - memory - inputs/outputs - terminals - power supply
Standpipe risers less than 30m
Long shunt
RTU
MSDS
36. Gas only applications - lobe impellars
Rotary meter
Square root extractor
Removing fuses from live currents
Load cells
37. RTD's in slots of stator windings
Ohm's law
3 phase induction motors
Flow nozzle
Overheating protection
38. 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
Gain (k)
Armature reaction
Offset
Main function of a power distribution system
39. Establish rules of safety covering the design - fabrication - and inspection during construction of boilers and pressure vessels - and to interpret these rules when questions arise
The function of the ASME Boiler and Pressure Vessel Committee
Weber
Active power
Effect of DC current through a resistance
40. 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
RTU
Mutual inductance
The purpose of separators and traps
IE =
41. Defined as that quantity of a substance that has a mass in kilograms equal to its molecular mass
'In phase'
Kilomole
Pressure at topmost of standpipe no less than
3 phase transformer
42. CO2 - SO2 - H20 - N2 and ash
Amortisseur
Difference between upper and lower calorific values
Products of perfect combustion
Plug fuses
43. Speed conditions - strength of field - number of conductors
Hydrogen cooling
3 factors affecting emf
Emergency response
Kilomole
44. Poisonous and infectious materials
Class D
Overspeed
Fire response procedure
Offset
45. Load current is also the excitation current - never operate without a load - has high starting torque
1.73
Primary purpose behind legislation
Series motor
AC generators aka
46. Expensive - externally mounted - not accurate for densisty changes
Real power (watts)
Occupational health and safety
Proportional band
Load cells
47. Prevents/dampens external vibration
Amortisseur
Double bourdon tube...
Disadvantages of natural gas
Seperately excited
48. Thermally sensitive resistor - negative tempertaure co- efficient - non linear with temperature
Closed- loop (feedback)
Advantage of cascade control
4 types of fires
Thermistor
49. Is the instantaneous values through one cycle(squared) the average
Magnetic flowmeters
Effective current flowing through an AC circuit
Pressure at topmost of standpipe no less than
Mutual inductance
50. Current is changing value. AC continuous changes generates alternating emf unit H - herny - symbol is 'L'
Lap windings
Bellows
Compound wound generator
Inductance only affects currents when