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Test your basic knowledge |
Engineering Studies
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Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. Elongation of grain flow in direction of rolling
Geosynchronous orbit
thermoplastic rubbers
hot rolling
thermosoftening polymer
2. Rubbers
forging properties
tungsten alloy
Potential energy
elastomers=what
3. Good wear - case hardening. ball bearings
fibre optic cable
stress corrosion
spalling concrete
chromium alloy
4. An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time
Low earth orbit
stress corrosion
Geosynchronous orbit
cos
5. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
Radiography
Dry corrosion
cold rolling
thermosetting polymers
6. Area parallel to force
Magnetic inspection
shear stress
Bernoulli's principle high speed
Radiography
7. Field winding parallel to armature winding. Bad for direct coupling
open die forging
DC motor
VR
elastomers=what
8. 10MHZ
Low carbon steel
Bernoulli's principle high speed
FM
Attenuation
9. A method of transmitting signals by changing the amplitude of a waves
Frequency modulation
VR
Amplitude modulation
Attenuation
10. 100khz
Potential energy
open die forging
Tempered Glass
AM
11. MA=VR
if 100% efficient
grey cast iron
Uniform attack
Tempering
12. Load/area
thermoplastic rubbers
Ultrasonic inspection
stress
Strain
13. 1GHZ
sin
grey cast iron
Mobiles
nickel alloy
14. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
open die forging
Dry corrosion
Tempering
Radiography
15. Hard - strong
cold rolling
MA
pearlite
shear stress
16. 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
Amplitude modulation
extrusion
tungsten alloy
Dye penetration test
17. Better properties that would come from machining
Geosynchronous orbit
forging properties
cementite
rectifier
18. High pressure
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19. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
Tempered Glass
mild steel
thermosoftening polymer
20. Resulting from exposure to damp environments and liquids.
shear stress
wet corrosion/electrochemical corrosion
bending stress
AM
21. Ma/vr x 100/1
Potential energy
Frequency modulation
n%
cold rolling
22. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
Bernoulli's principle low speed
high carbon steel
mild steel
thermosetting polymers
23. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
spalling concrete
Medium earth orbit
Attenuation
wet corrosion/electrochemical corrosion
24. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
thermosoftening polymer
elastomers=what
Low carbon steel
Radiography
25. Between 2000-35 -700km above the earth's surface.
AM
fibre optic cable
Bandwidth
Medium earth orbit
26. Good high temp wear - tools
Impressed current
Medium earth orbit
Amplitude modulation
tungsten alloy
27. Difference/original
AC motor
if 100% efficient
Strain
drop forging
28. x<0.15% carbon. ferrite. good for cold working - rolling sheets
Commutator
shear stress
Ultrasonic inspection
Low carbon steel
29. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Bandwidth
Normalising
Tempering
malleable cast iron
30. A motor that is light - rugged and very reliable - runs on ac current and are more common in robotics. Can only run at a certain speed
Laminated glass
Geosynchronous orbit
Potential energy
AC motor
31. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
Sacrifical anode
malleable cast iron
medium carbon steel
Kinetic energy
32. Supply current to the rotating commutator from an external source
MA
high carbon steel
white cast iron
Brushes
33. 100GHZ+
Bandwidth
pearlite
Satellite
Bernoulli's principle high speed
34. Allows for another signal to be sent along the carrier signal
mild steel
Satellite
ferrite
modulation
35. Forming of metal by compressive force above recrystallization point.
forging
Low carbon steel
Laminated glass
Radio antenna length
36. Solid at room temp - weak secondary bonds. can be reheated multiply times.
thermosoftening polymer
Sacrifical anode
elastomers=what
Impressed current
37. Ma/vr
sin
n
hot rolling
Bernoulli's principle low speed
38. AC to DC
closed die forging
rectifier
high carbon steel
High frequency
39. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Frequency modulation
medium carbon steel
extrusion
Bandwidth
40. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
forging properties
Strain
extrusion
41. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Attenuation
chromium alloy
grey cast iron
Magnetic inspection
42. Soaked cast iron at 870c for long time then cooled slow
malleable cast iron
bending stress
thermosetting polymers
Transistor
43. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
Normalising
Tempering
manganese and silicon alloy
44. The quantity of information that can be transmitted through a communication medium in a given amount of time.
fibre optic cable
High frequency
Bandwidth
Medium earth orbit
45. 1%<X<2% carbon. more cementite - used for files
AC motor
Medium earth orbit
ultra- high carbon steel
shear stress
46. Produces; harder - stronger and less ductile product
thermosetting polymers
mild steel
cold rolling
VR
47. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
FM
Impressed current
Tempered Glass
elastomers=what
48. A method of transmitting signals by changing the frequency of a wave
Attenuation
ferrite
forging
Frequency modulation
49. A flexible communications cable that contains pairs of insulated copper wires that are twisted together for reduction of EMI and RFI and covered with an outer insulating jacket.
Annealing
stress
Twisted pair cable
hot rolling
50. A solid state component made from three layers of semiconductor material that can amplify the strenght of an electric signal or act as an electronic switch
stress
Transistor
tungsten alloy
AM
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