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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. Resulting from combined effect of stresses set up within the metal
stress corrosion
Twisted pair cable
Radiography
High frequency
2. Area load piston/area of effort piston
Kinetic energy
VR
forging
bending stress
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
spalling concrete
Fluorescent test
thermosetting polymers
elastomers=what
4. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
wet corrosion/electrochemical corrosion
thermosetting polymers
Laminated glass
modulation
5. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
FM
Bandwidth
Tempering
Laminated glass
6. Being forced - under pressure - through a hole like toothpaste. either hot or cold
extrusion
Amplitude modulation
Annealing
Low earth orbit
7. Rubbers
elastomers=what
thermosetting polymers
thermoplastic rubbers
Normalising
8. X<1% silicon no graphite - has carbon/carbide. very brittle
drop forging
white cast iron
Normalising
nodular graphite cast iron
9. Results from the changing anode and cathode regions over the entire surface
Bernoulli's principle high speed
mild steel
Uniform attack
grey cast iron
10. 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
Normalising
Transistor
Dry corrosion
if 100% efficient
11. Allows for another signal to be sent along the carrier signal
ultra- high carbon steel
modulation
cos
white cast iron
12. 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.
Amplitude modulation
Kinetic energy
thermosetting polymers
Twisted pair cable
13. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Sacrifical anode
Geosynchronous orbit
nickel alloy
Tempering
14. Field winding parallel to armature winding. Bad for direct coupling
Fluorescent test
stress corrosion
pearlite
DC motor
15. Mass X gravity X height
Potential energy
Radio antenna length
Laminated glass
extrusion
16. 1/4 of the wavelength (higher better)
white cast iron
Kinetic energy
Bandwidth
Radio antenna length
17. Forming of metal by compressive force above recrystallization point.
FM
forging
chromium alloy
Frequency modulation
18. 1/2Xmass X velocity X velocity
Kinetic energy
Uniform attack
modulation
spalling concrete
19. Ma/vr x 100/1
Dry corrosion
n%
closed die forging
Commutator
20. Hard - brittle
cementite
elastomers=what
sin
thermosoftening polymer
21. Solid at room temp - weak secondary bonds. can be reheated multiply times.
Dry corrosion
Dye penetration test
thermosoftening polymer
rectifier
22. The greater the sulphur the harder the rubber to stretch
Sacrifical anode
Satellite
thermosoftening polymer
thermoset rubbers
23. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
cementite
nodular graphite cast iron
Concrete
n%
24. Soaked cast iron at 870c for long time then cooled slow
ultra- high carbon steel
Commutator
Ultrasonic inspection
malleable cast iron
25. 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
AC motor
Medium earth orbit
Normalising
Twisted pair cable
26. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
wet corrosion/electrochemical corrosion
Bandwidth
Twisted pair cable
27. A method of transmitting signals by changing the amplitude of a waves
thermoplastic rubbers
Amplitude modulation
Bandwidth
MA
28. When upper die is dropped on bottom
Radiography
Annealing
DC motor
drop forging
29. Elongation of grain flow in direction of rolling
closed die forging
hot rolling
manganese and silicon alloy
Medium earth orbit
30. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
MA
Ultrasonic inspection
high carbon steel
Frequency modulation
31. 100GHZ+
Bernoulli's principle low speed
forging properties
Satellite
high carbon steel
32. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Commutator
VR
High frequency
Magnetic inspection
33. Difference/original
Mobiles
modulation
Strain
Potential energy
34. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Satellite
n%
Hardening
cementite
35. 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
malleable cast iron
ultra- high carbon steel
Dye penetration test
Hardening
36. These have weaker secondary bonds which allow the stretching
thermoplastic rubbers
malleable cast iron
Mobiles
Geosynchronous orbit
37. Load/area
High frequency
cos
stress
n
38. High pressure
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39. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Bandwidth
Frequency modulation
shear stress
cos
40. Better properties that would come from machining
wet corrosion/electrochemical corrosion
Radiography
open die forging
forging properties
41. Between 2000-35 -700km above the earth's surface.
bending stress
hot rolling
Medium earth orbit
manganese and silicon alloy
42. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
Amplitude modulation
bending stress
medium carbon steel
Low earth orbit
43. Good wear - case hardening. ball bearings
Impressed current
chromium alloy
High frequency
Bernoulli's principle high speed
44. A method of transmitting signals by changing the frequency of a wave
Frequency modulation
Sacrifical anode
closed die forging
fibre optic cable
45. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
Kinetic energy
spalling concrete
malleable cast iron
thermosetting polymers
46. 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
Sacrifical anode
Frequency modulation
hot rolling
chromium alloy
47. 10MHZ
Frequency modulation
Uniform attack
FM
Mobiles
48. 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
sin
Dry corrosion
Ultrasonic inspection
Geosynchronous orbit
49. Supply current to the rotating commutator from an external source
Normalising
Bernoulli's principle high speed
Brushes
bending stress
50. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
Attenuation
Mobiles
Sacrifical anode
sin
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