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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 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
Bernoulli's principle high speed
modulation
thermoplastic rubbers
Transistor
2. x<0.15% carbon. ferrite. good for cold working - rolling sheets
Low carbon steel
Uniform attack
Dye penetration test
Medium earth orbit
3. Ma/vr
Impressed current
ferrite
n
Dry corrosion
4. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
ultra- high carbon steel
Ultrasonic inspection
manganese and silicon alloy
open die forging
5. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
Magnetic inspection
Tempered Glass
cementite
6. Low pressure
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7. 100GHZ+
Tempering
DC motor
Dry corrosion
Satellite
8. Load/effort
if 100% efficient
medium carbon steel
Radio antenna length
MA
9. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
Magnetic inspection
extrusion
chromium alloy
spalling concrete
10. 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
ultra- high carbon steel
hot rolling
AC motor
stress corrosion
11. Between 2000-35 -700km above the earth's surface.
Medium earth orbit
Bernoulli's principle high speed
closed die forging
modulation
12. 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
Ultrasonic inspection
Dye penetration test
manganese and silicon alloy
n%
13. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
thermosetting polymers
DC motor
Satellite
drop forging
14. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
Low earth orbit
Annealing
medium carbon steel
Normalising
15. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Fluorescent test
high carbon steel
Medium earth orbit
Tempered Glass
16. Supply current to the rotating commutator from an external source
Brushes
hot rolling
Concrete
nickel alloy
17. X<1% silicon no graphite - has carbon/carbide. very brittle
extrusion
white cast iron
Impressed current
thermosetting polymers
18. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Magnetic inspection
Concrete
drop forging
Tempering
19. Hard - brittle
cementite
FM
Mobiles
Impressed current
20. The greater the sulphur the harder the rubber to stretch
thermoset rubbers
Commutator
Dye penetration test
medium carbon steel
21. 100khz
AM
Low carbon steel
High frequency
Twisted pair cable
22. Better properties that would come from machining
forging properties
MA
Twisted pair cable
Bernoulli's principle low speed
23. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Tempered Glass
Low earth orbit
MA
manganese and silicon alloy
24. Used where scarifical anodes cannot supply enough protection - offshore oil rigs - buried pipes - big things. protection is provided by connecting a rectifier to provide a direct current source between the anode and the metal being protected.
cementite
thermosetting polymers
Dye penetration test
Impressed current
25. 1%<X<2% carbon. more cementite - used for files
chromium alloy
bending stress
ultra- high carbon steel
Laminated glass
26. Allows for another signal to be sent along the carrier signal
high carbon steel
nodular graphite cast iron
modulation
Laminated glass
27. 10MHZ
Low earth orbit
high carbon steel
medium carbon steel
FM
28. A strong hard building material composed of sand and gravel and cement and water
Potential energy
Concrete
thermosetting polymers
sin
29. When upper die is dropped on bottom
Kinetic energy
Brushes
drop forging
Normalising
30. 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
Annealing
Potential energy
white cast iron
31. 1/2Xmass X velocity X velocity
cos
shear stress
ultra- high carbon steel
Kinetic energy
32. These have weaker secondary bonds which allow the stretching
forging properties
spalling concrete
thermoplastic rubbers
stress corrosion
33. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
Normalising
bending stress
hot rolling
34. Resulting from combined effect of stresses set up within the metal
thermoplastic rubbers
drop forging
stress corrosion
n%
35. Usually used together - strengthening and toughness
cold rolling
stress
manganese and silicon alloy
Commutator
36. Vertical
fibre optic cable
thermoplastic rubbers
sin
hot rolling
37. 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
Mobiles
Geosynchronous orbit
Transistor
white cast iron
38. Forming of metal by compressive force above recrystallization point.
AC motor
n
forging
thermosoftening polymer
39. AC to DC
Dye penetration test
Satellite
rectifier
ultra- high carbon steel
40. Difference/original
pearlite
drop forging
Strain
Kinetic energy
41. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
hot rolling
Brushes
white cast iron
open die forging
42. High pressure
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43. A method of transmitting signals by changing the frequency of a wave
Transistor
ultra- high carbon steel
Frequency modulation
thermosoftening polymer
44. The quantity of information that can be transmitted through a communication medium in a given amount of time.
n%
AM
Bandwidth
forging
45. Area parallel to force
Twisted pair cable
nickel alloy
shear stress
open die forging
46. 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
DC motor
sin
Commutator
forging properties
47. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
closed die forging
tungsten alloy
manganese and silicon alloy
grey cast iron
48. Ma/vr x 100/1
n%
Bernoulli's principle low speed
MA
thermosetting polymers
49. MA=VR
drop forging
if 100% efficient
pearlite
Frequency modulation
50. Softening a material such as metal by controlled heating and cooling. This makes the metal less brittle and more easily adaptable. Soaking till austenite then cooling slowly. large grains
Concrete
Normalising
Annealing
Impressed current
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