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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.
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. A cable made of optical fibers that can transmit large amounts of information at the speed of light
fibre optic cable
Satellite
bending stress
Annealing
2. Hard - strong
Bernoulli's principle high speed
Potential energy
pearlite
sin
3. A method of transmitting signals by changing the frequency of a wave
shear stress
Bernoulli's principle high speed
Frequency modulation
Dye penetration test
4. Elongation of grain flow in direction of rolling
thermosetting polymers
grey cast iron
nickel alloy
hot rolling
5. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Bandwidth
Low carbon steel
thermoplastic rubbers
n%
6. A method of transmitting signals by changing the amplitude of a waves
Magnetic inspection
thermoplastic rubbers
Amplitude modulation
forging
7. AC to DC
forging properties
rectifier
pearlite
High frequency
8. 1GHZ
n%
Mobiles
stress
chromium alloy
9. Low pressure
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10. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
Annealing
stress corrosion
rectifier
open die forging
11. 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
Concrete
Sacrifical anode
ultra- high carbon steel
AM
12. Supply current to the rotating commutator from an external source
Hardening
MA
FM
Brushes
13. 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
rectifier
Magnetic inspection
Fluorescent test
Amplitude modulation
14. High pressure
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15. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
sin
Magnetic inspection
Kinetic energy
n%
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
thermosetting polymers
pearlite
Dye penetration test
Bernoulli's principle high speed
17. 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 corrosion
Transistor
spalling concrete
n
18. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
tungsten alloy
thermosetting polymers
white cast iron
extrusion
19. Vertical
Strain
Satellite
Impressed current
sin
20. Squeezing of the hot metal between two shaped dies excess is cut off
closed die forging
Uniform attack
AM
n
21. 10MHZ
FM
Commutator
high carbon steel
Strain
22. Soft - ductile
forging
Sacrifical anode
ferrite
Laminated glass
23. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
Annealing
hot rolling
Commutator
spalling concrete
24. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
forging properties
spalling concrete
high carbon steel
Attenuation
25. 1/4 of the wavelength (higher better)
nodular graphite cast iron
Fluorescent test
Hardening
Radio antenna length
26. Load/effort
Mobiles
MA
cold rolling
Potential energy
27. Solid at room temp - weak secondary bonds. can be reheated multiply times.
cold rolling
AC motor
thermosoftening polymer
Frequency modulation
28. 1/2Xmass X velocity X velocity
Kinetic energy
shear stress
tungsten alloy
MA
29. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
Concrete
Radiography
wet corrosion/electrochemical corrosion
Dry corrosion
30. A device that converts the AC inside a DC generator to a DC output or converts a DC supply to an AC inside a DC motor.keeping the armature rotating
Tempered Glass
open die forging
tungsten alloy
Commutator
31. 1%<X<2% carbon. more cementite - used for files
hot rolling
Uniform attack
ultra- high carbon steel
Potential energy
32. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Ultrasonic inspection
cold rolling
Concrete
high carbon steel
33. Between 2000-35 -700km above the earth's surface.
Amplitude modulation
Medium earth orbit
Low earth orbit
grey cast iron
34. The greater the sulphur the harder the rubber to stretch
thermoset rubbers
sin
Bernoulli's principle low speed
medium carbon steel
35. Produces; harder - stronger and less ductile product
cold rolling
Concrete
AM
modulation
36. Horizontal
if 100% efficient
cos
Amplitude modulation
stress corrosion
37. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
bending stress
Low carbon steel
Tempered Glass
nickel alloy
38. Difference/original
spalling concrete
Strain
Dye penetration test
ferrite
39. Mass X gravity X height
chromium alloy
stress corrosion
thermosetting polymers
Potential energy
40. A strong hard building material composed of sand and gravel and cement and water
Concrete
pearlite
nickel alloy
open die forging
41. Ma/vr x 100/1
Tempered Glass
bending stress
n%
MA
42. Field winding parallel to armature winding. Bad for direct coupling
bending stress
AC motor
DC motor
FM
43. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
forging
Hardening
fibre optic cable
nodular graphite cast iron
44. Ma/vr
n%
ultra- high carbon steel
n
VR
45. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
chromium alloy
forging properties
Kinetic energy
46. Hard - brittle
Bernoulli's principle low speed
chromium alloy
cementite
Radio antenna length
47. x<0.15% carbon. ferrite. good for cold working - rolling sheets
Radiography
Low carbon steel
tungsten alloy
drop forging
48. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Mobiles
Medium earth orbit
grey cast iron
Brushes
49. 100khz
High frequency
Potential energy
AM
spalling concrete
50. Soaked cast iron at 870c for long time then cooled slow
Amplitude modulation
malleable cast iron
DC motor
Low earth orbit
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