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Test your basic knowledge |
Engineering Studies
Start Test
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. Supply current to the rotating commutator from an external source
Brushes
hot rolling
Medium earth orbit
Tempered Glass
2. Load/area
stress
high carbon steel
rectifier
stress corrosion
3. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Ultrasonic inspection
Low carbon steel
Magnetic inspection
cos
4. 100GHZ+
Satellite
ultra- high carbon steel
Potential energy
Twisted pair cable
5. Resulting from combined effect of stresses set up within the metal
grey cast iron
AM
stress corrosion
Low earth orbit
6. 1%<X<2% carbon. more cementite - used for files
Kinetic energy
fibre optic cable
ultra- high carbon steel
Normalising
7. An orbit less than 1 -500 km. above the Earth's surface.
thermoplastic rubbers
stress
Ultrasonic inspection
Low earth orbit
8. Low pressure
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9. 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.
Normalising
Twisted pair cable
Bandwidth
forging properties
10. AC to DC
rectifier
Bernoulli's principle low speed
Frequency modulation
AC motor
11. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
Laminated glass
Annealing
n%
spalling concrete
12. Load/effort
FM
mild steel
nickel alloy
MA
13. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
thermoplastic rubbers
medium carbon steel
Commutator
Normalising
14. High pressure
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15. Better properties that would come from machining
forging properties
n
Geosynchronous orbit
Medium earth orbit
16. 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
cementite
medium carbon steel
Annealing
Magnetic inspection
17. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
ultra- high carbon steel
drop forging
open die forging
18. 100khz
open die forging
AM
extrusion
thermosetting polymers
19. 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
Geosynchronous orbit
sin
extrusion
Brushes
20. 1/4 of the wavelength (higher better)
ultra- high carbon steel
malleable cast iron
Radio antenna length
Kinetic energy
21. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
Satellite
Radio antenna length
Uniform attack
nodular graphite cast iron
22. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
drop forging
thermosetting polymers
Tempered Glass
Kinetic energy
23. Horizontal
thermosetting polymers
cos
Geosynchronous orbit
Fluorescent test
24. Produces; harder - stronger and less ductile product
ferrite
spalling concrete
Frequency modulation
cold rolling
25. Solid at room temp - weak secondary bonds. can be reheated multiply times.
thermosoftening polymer
open die forging
Brushes
rectifier
26. Ma/vr
Commutator
n
Mobiles
chromium alloy
27. 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
grey cast iron
malleable cast iron
Geosynchronous orbit
AC motor
28. Between 2000-35 -700km above the earth's surface.
malleable cast iron
drop forging
Medium earth orbit
Concrete
29. Difference/original
Strain
MA
thermoplastic rubbers
spalling concrete
30. Hard - brittle
Satellite
cementite
ferrite
Laminated glass
31. Ma/vr x 100/1
Concrete
n%
Bandwidth
Frequency modulation
32. Good toughness and fatigue. high strength structures
Commutator
nickel alloy
Satellite
VR
33. 1/2Xmass X velocity X velocity
grey cast iron
Brushes
Kinetic energy
n
34. Area parallel to force
Kinetic energy
sin
extrusion
shear stress
35. 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
Dry corrosion
medium carbon steel
Transistor
Concrete
36. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
Normalising
Bandwidth
Geosynchronous orbit
Dye penetration test
37. Resulting from exposure to damp environments and liquids.
Brushes
stress corrosion
wet corrosion/electrochemical corrosion
Dry corrosion
38. Being forced - under pressure - through a hole like toothpaste. either hot or cold
wet corrosion/electrochemical corrosion
Dye penetration test
extrusion
elastomers=what
39. Can be reflected of the ionosphere - 3 to 30 megahertz
elastomers=what
Attenuation
cos
High frequency
40. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
DC motor
Radio antenna length
Laminated glass
Attenuation
41. Field winding parallel to armature winding. Bad for direct coupling
Mobiles
DC motor
tungsten alloy
pearlite
42. Hard - strong
pearlite
High frequency
wet corrosion/electrochemical corrosion
Concrete
43. Results from the changing anode and cathode regions over the entire surface
Uniform attack
FM
Fluorescent test
ultra- high carbon steel
44. Good high temp wear - tools
nodular graphite cast iron
Dry corrosion
tungsten alloy
FM
45. Mass X gravity X height
Potential energy
wet corrosion/electrochemical corrosion
forging
forging properties
46. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
MA
Mobiles
Hardening
Bandwidth
47. 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.
medium carbon steel
cold rolling
modulation
Impressed current
48. Allows for another signal to be sent along the carrier signal
modulation
white cast iron
pearlite
forging properties
49. 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
stress
Dye penetration test
Low earth orbit
Potential energy
50. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
tungsten alloy
thermoplastic rubbers
high carbon steel
Ultrasonic inspection