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Test your basic knowledge |
Engineering Studies
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. Between 2000-35 -700km above the earth's surface.
extrusion
Medium earth orbit
High frequency
spalling concrete
2. Hard - strong
n%
pearlite
wet corrosion/electrochemical corrosion
Low earth orbit
3. Dye is sprayed onto a surface - with excess being wiped away - meaning any left on the piece would be in cracks that exist in it. A Fluorescent light is turned on to expose any left over - I.e in the cracks
Fluorescent test
Bernoulli's principle high speed
manganese and silicon alloy
Brushes
4. Low pressure
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5. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
open die forging
High frequency
shear stress
tungsten alloy
6. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
Satellite
Dye penetration test
Radiography
7. Us a metal that is more reactive. It is connect to another metal and corrodes instead of the other metal. the Anode is replaced periodically
pearlite
chromium alloy
Sacrifical anode
High frequency
8. Dye is sprayed onto a surface - with excess being wiped away - meaning any left on the piece would be in cracks that exist in it. A developer is then added to it to expose any left over - I.e in the cracks
Dye penetration test
Tempering
AM
chromium alloy
9. 100GHZ+
Uniform attack
Sacrifical anode
Impressed current
Satellite
10. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
DC motor
modulation
stress corrosion
11. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Bandwidth
Dry corrosion
thermosetting polymers
forging
12. Difference/original
manganese and silicon alloy
Strain
open die forging
chromium alloy
13. 1GHZ
Potential energy
Amplitude modulation
bending stress
Mobiles
14. Resulting from exposure to damp environments and liquids.
wet corrosion/electrochemical corrosion
cementite
Kinetic energy
Medium earth orbit
15. Resulting from combined effect of stresses set up within the metal
forging
Satellite
stress corrosion
nickel alloy
16. Horizontal
n%
cos
Satellite
MA
17. Supply current to the rotating commutator from an external source
Low carbon steel
Brushes
Satellite
stress corrosion
18. When upper die is dropped on bottom
cos
FM
Laminated glass
drop forging
19. Soft - ductile
ferrite
elastomers=what
Dye penetration test
pearlite
20. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
Radiography
Medium earth orbit
extrusion
Satellite
21. 10MHZ
FM
cos
stress
thermosetting polymers
22. A method of transmitting signals by changing the amplitude of a waves
Dye penetration test
Kinetic energy
Amplitude modulation
if 100% efficient
23. Produces; harder - stronger and less ductile product
Low carbon steel
stress corrosion
DC motor
cold rolling
24. Elongation of grain flow in direction of rolling
open die forging
hot rolling
sin
Concrete
25. Ma/vr
shear stress
nickel alloy
cos
n
26. 1%<X<2% carbon. more cementite - used for files
Satellite
ultra- high carbon steel
chromium alloy
Radiography
27. 1/4 of the wavelength (higher better)
Radio antenna length
grey cast iron
tungsten alloy
sin
28. High pressure
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29. Area parallel to force
shear stress
Uniform attack
DC motor
tungsten alloy
30. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
chromium alloy
wet corrosion/electrochemical corrosion
Laminated glass
Ultrasonic inspection
31. Usually used together - strengthening and toughness
manganese and silicon alloy
MA
VR
Dye penetration test
32. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
spalling concrete
VR
ferrite
closed die forging
33. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Hardening
stress
modulation
thermosetting polymers
34. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
Radiography
Attenuation
ultra- high carbon steel
tungsten alloy
35. X<1% silicon no graphite - has carbon/carbide. very brittle
white cast iron
extrusion
spalling concrete
FM
36. Load/area
shear stress
hot rolling
stress
Laminated glass
37. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
nodular graphite cast iron
Sacrifical anode
high carbon steel
fibre optic cable
38. Results from the changing anode and cathode regions over the entire surface
medium carbon steel
spalling concrete
Uniform attack
Radiography
39. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
Satellite
fibre optic cable
Low earth orbit
40. x<0.15% carbon. ferrite. good for cold working - rolling sheets
chromium alloy
malleable cast iron
Low carbon steel
cementite
41. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Dry corrosion
extrusion
Satellite
tungsten alloy
42. Area load piston/area of effort piston
Commutator
n
VR
Tempering
43. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
High frequency
cold rolling
mild steel
AC motor
44. These have weaker secondary bonds which allow the stretching
rectifier
thermoplastic rubbers
wet corrosion/electrochemical corrosion
bending stress
45. Mass X gravity X height
hot rolling
Potential energy
shear stress
forging properties
46. Vertical
grey cast iron
sin
Tempered Glass
Commutator
47. Good toughness and fatigue. high strength structures
Satellite
nickel alloy
Strain
Annealing
48. Hard - brittle
chromium alloy
cementite
stress
Dry corrosion
49. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
chromium alloy
Normalising
modulation
Geosynchronous orbit
50. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
malleable cast iron
n%
Concrete
Dry corrosion
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