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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. Load/effort
MA
malleable cast iron
Bandwidth
Fluorescent test
2. Good wear - case hardening. ball bearings
Geosynchronous orbit
AM
chromium alloy
Annealing
3. Difference/original
open die forging
Strain
Radio antenna length
high carbon steel
4. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Concrete
Twisted pair cable
fibre optic cable
high carbon steel
5. 1/2Xmass X velocity X velocity
Kinetic energy
Hardening
FM
Concrete
6. Soaked cast iron at 870c for long time then cooled slow
bending stress
malleable cast iron
Laminated glass
Medium earth orbit
7. Allows for another signal to be sent along the carrier signal
thermoplastic rubbers
Amplitude modulation
Attenuation
modulation
8. 10MHZ
manganese and silicon alloy
white cast iron
spalling concrete
FM
9. These have weaker secondary bonds which allow the stretching
thermoplastic rubbers
stress
high carbon steel
manganese and silicon alloy
10. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Low carbon steel
Potential energy
Tempered Glass
n%
11. Good toughness and fatigue. high strength structures
chromium alloy
nickel alloy
Medium earth orbit
MA
12. The greater the sulphur the harder the rubber to stretch
manganese and silicon alloy
Attenuation
Uniform attack
thermoset rubbers
13. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Ultrasonic inspection
Twisted pair cable
grey cast iron
Laminated glass
14. Elongation of grain flow in direction of rolling
elastomers=what
open die forging
Radio antenna length
hot rolling
15. 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.
nodular graphite cast iron
chromium alloy
Potential energy
Twisted pair cable
16. 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
Frequency modulation
Radio antenna length
Commutator
manganese and silicon alloy
17. Rubbers
manganese and silicon alloy
grey cast iron
MA
elastomers=what
18. A method of transmitting signals by changing the frequency of a wave
fibre optic cable
Radio antenna length
Ultrasonic inspection
Frequency modulation
19. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
thermosetting polymers
Laminated glass
Geosynchronous orbit
n%
20. Results from the changing anode and cathode regions over the entire surface
Attenuation
Uniform attack
Low carbon steel
modulation
21. 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
Ultrasonic inspection
Uniform attack
Transistor
Kinetic energy
22. 100GHZ+
Satellite
wet corrosion/electrochemical corrosion
shear stress
cementite
23. Good high temp wear - tools
tungsten alloy
Low earth orbit
Frequency modulation
Fluorescent test
24. Produces; harder - stronger and less ductile product
High frequency
Bandwidth
medium carbon steel
cold rolling
25. A strong hard building material composed of sand and gravel and cement and water
AC motor
Concrete
Low carbon steel
Kinetic energy
26. 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
n
Commutator
Annealing
ferrite
27. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
hot rolling
Dry corrosion
Normalising
Medium earth orbit
28. 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
Kinetic energy
AC motor
open die forging
forging
29. Area load piston/area of effort piston
VR
Attenuation
Kinetic energy
forging
30. x<0.15% carbon. ferrite. good for cold working - rolling sheets
FM
Uniform attack
n
Low carbon steel
31. When upper die is dropped on bottom
closed die forging
drop forging
Bandwidth
Low earth orbit
32. 1/4 of the wavelength (higher better)
Ultrasonic inspection
Radio antenna length
FM
Low carbon steel
33. X<1% silicon no graphite - has carbon/carbide. very brittle
VR
white cast iron
AM
cold rolling
34. 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
Impressed current
elastomers=what
cos
Fluorescent test
35. Soft - ductile
Normalising
Bandwidth
Strain
ferrite
36. Better properties that would come from machining
FM
Medium earth orbit
forging properties
ultra- high carbon steel
37. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
DC motor
Kinetic energy
forging
38. Field winding parallel to armature winding. Bad for direct coupling
Hardening
DC motor
Laminated glass
Tempered Glass
39. 1%<X<2% carbon. more cementite - used for files
Bernoulli's principle low speed
stress corrosion
ultra- high carbon steel
FM
40. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
VR
Hardening
grey cast iron
MA
41. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
fibre optic cable
closed die forging
modulation
42. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
shear stress
open die forging
Magnetic inspection
forging
43. Solid at room temp - weak secondary bonds. can be reheated multiply times.
Normalising
thermosoftening polymer
spalling concrete
Uniform attack
44. Hard - strong
ultra- high carbon steel
pearlite
thermoplastic rubbers
closed die forging
45. A cable made of optical fibers that can transmit large amounts of information at the speed of light
hot rolling
fibre optic cable
Kinetic energy
stress
46. Area parallel to force
cementite
n%
Kinetic energy
shear stress
47. Supply current to the rotating commutator from an external source
Tempering
Brushes
rectifier
Dye penetration test
48. Can be reflected of the ionosphere - 3 to 30 megahertz
Low carbon steel
High frequency
thermoset rubbers
forging properties
49. MA=VR
Low earth orbit
Potential energy
Geosynchronous orbit
if 100% efficient
50. Between 2000-35 -700km above the earth's surface.
shear stress
Medium earth orbit
forging properties
Tempering
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